Decimal point in "Convert.ToInt" statement causing Format Error?

Decimal point in "Convert.ToInt" statement causing Format Error? - c#

I have been following this tutorial to help me create a basic shopping basket. When trying to run the code with the below method added which should calculate the TotalPrice & TotalProducts of the basket on the OrderForm, I get the following error:
'System.FormatException' occurred in mscorlib.dll but was not handled in user code. Additional information: Input string was not in a correct format.
pointing at the line
long ProductPrice =
Convert.ToInt64(PriceLabel.Text) *
Convert.ToInt64(ProductQuantity.Text);
In the database, an example of a ProductPrice is "199.99" where as the tutorial only used whole numbers e.g. "199". I am not sure if this is what is causing the issue? If this is the case, how should the code below be modified to include the decimal point too?
I am new to coding, so this is really stressing me out, I really would appreciated some guideance/suggested code changes to overcome this issue
Thanks as ever guys!
private void UpdateTotalBill()
{
long TotalPrice = 0;
long TotalProducts = 0;
foreach (DataListItem item in dlBasketItems.Items)
{
//Finds the price label on pnlMyBasket
Label PriceLabel = item.FindControl("lblPrice") as Label;
//Finds the quantity text box on pnlMyBasket
TextBox ProductQuantity = item.FindControl("txtProductQuantity") as TextBox;
long ProductPrice = Convert.ToInt32(PriceLabel.Text) * Convert.ToInt32(ProductQuantity.Text);
TotalPrice = TotalPrice + ProductPrice;
TotalProducts = TotalProducts + Convert.ToInt32(ProductQuantity.Text);
}
txtTotalPrice.Text = Convert.ToString(TotalPrice);
txtTotalProducts.Text = Convert.ToString(TotalProducts);
}
pnlMyBasket
<asp:Panel ID="pnlMyBasket" runat="server" ScrollBars="Auto" Height="500px" BorderColor="Black" BorderStyle="Inset" BorderWidth="1px" Visible="false">
<table align="center" cellspacing="1">
<tr>
<td align="center" class="auto-style4">
<asp:Label ID="lblAvailableStockAlert" runat="server" ForeColor="Red" Font-Bold="true"></asp:Label>
<asp:DataList ID="dlBasketItems" runat="server" RepeatColumns="3" Font-Bold="False"
Font-Italic="False" Font-Overline="False" Font-Strikeout="False" Font-Underline="False"
Width="551px">
<ItemTemplate>
<div align="left">
<table cellspacing="1" style="border: 1px ridge #9900FF; text-align: center; width: 172px;">
<tr>
<td style="border-bottom-style: ridge; border-width: 1px; border-color: #000000">
<asp:Label ID="lblProductName" runat="server" Text='<%# Eval("ProductName")%>' Style="font-weight: 700"></asp:Label>
</td>
</tr>
<tr>
<td>
<img alt="" src='<%# Eval("ProductImageUrl") %>' runat="server" id="imgProductPhoto" style="border: ridge 1px black;
width: 157px; height: 130px;" />
</td>
</tr>
<tr>
<td>AvailableStock: <asp:Label ID="lblAvailableStock" runat="server" Text='<%# Eval("ProductStock") %>'
ToolTip="Available Stock" ForeColor="Red" Font-Bold="true"></asp:Label>
<br />
Price:<asp:Label ID="lblPrice" runat="server" Text='<%# Eval ("ProductPrice") %>'></asp:Label>
<br /> Quantity Required x
<asp:TextBox ID="txtProductQuantity" runat="server" Width="20px" Height="10px" MaxLength="2" OnTextChanged="txtProductQuantity_TextChanged" AutoPostBack="true" ></asp:TextBox>
<asp:HiddenField ID="hfProductID" runat="server" Value='<%# Eval("ProductID") %>' />
</td>
</tr>
<tr>
<td>
<hr /> <asp:Button ID="btnRemoveFromBasket" runat="server" CommandArgument='<%# Eval("ProductID") %>'
Text="Remove From Basket" Width="100%" BorderColor="Black" BorderStyle="Inset" BorderWidth="1px"
OnClick="btnRemoveFromBasket_Click" CausesValidation="false" />
</td>
</tr>
</table>
</div>
</ItemTemplate>
<ItemStyle Width="33%" />
</asp:DataList>
</td>
</tr>
</table>
</asp:Panel>
pnlOrderForm
<asp:Panel ID="pnlOrderForm" runat="server" ScrollBars="Auto" Height="500px" BorderColor="Black"
BorderStyle="Inset" BorderWidth="1px" Visible="false">
<table style="width: 258px;">
<tr>
<td align="left">
Name:
</td>
</tr>
<tr>
<td>
<asp:TextBox ID="txtCustomerName" runat="server" Width="231px"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="txtCustomerName"
ErrorMessage="*" ForeColor="Red"></asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td align="left">
PhoneNo:
</td>
</tr
<tr>
<td>
<asp:TextBox ID="txtCustomerPhoneNo" runat="server" Width="231px" MaxLength="10"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server" ControlToValidate="txtCustomerPhoneNo"
ErrorMessage="*" ForeColor="Red"></asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td align="left">
EmailID
</td>
</tr>
<tr>
<td>
<asp:TextBox ID="txtCustomerEmailID" runat="server" Width="231px"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server" ControlToValidate="txtCustomerEmailID"
ErrorMessage="*" ForeColor="Red"></asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td align="left">
Address
</td>
</tr>
<tr>
<td align="left">
<asp:TextBox ID="txtCustomerAddress" runat="server" Width="227px" Height="81px"
TextMode="MultiLine"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator4" runat="server" ControlToValidate="txtCustomerAddress"
ErrorMessage="*" ForeColor="Red"></asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td align="left">
Total Products :
</td>
</tr>
<tr>
<td align="center">
<asp:TextBox ID="txtTotalProducts" runat="server" ReadOnly="True" Width="231px"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator5" runat="server" ControlToValidate="txtTotalProducts"
ErrorMessage="*" ForeColor="Red"></asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td align="left">
Total Price :
</td>
</tr>
<tr>
<td>
<asp:TextBox ID="txtTotalPrice" runat="server" ReadOnly="True" Width="231px"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator6" runat="server" ControlToValidate="txtTotalPrice"
ErrorMessage="*" ForeColor="Red"></asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td align="left">
Payment Mode:
</td>
</tr>
<tr>
<td align="left">
<asp:RadioButtonList ID="rblMethodOfPayment" runat="server">
<asp:ListItem Value="1" Selected="True">1. Collect & Pay In Store</asp:ListItem>
<asp:ListItem Value="2">2. Pay with card</asp:ListItem>
</asp:RadioButtonList>
</td>
</tr>
<tr>
<td>
<br />
</td>
</tr>
<tr>
<td>
<asp:Button ID="btnPlaceOrder" runat="server" OnClick="btnPlaceOrder_Click" Style="font-weight: 700"
Text="PlaceOrder" Width="90px" />
</td>
</tr>
<tr>
<td>
<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" ControlToValidate="txtCustomerEmailID"
ErrorMessage="Please Enter Valid EmailId" ForeColor="Red" ValidationExpression="\w+([-+.']\w+)*#\w+([-.]\w+)*\.\w+([-.]\w+)*"></asp:RegularExpressionValidator>
</td>
</tr>
</table>
</asp:Panel>

I think you need to convert to decimal, then to long. Like this:
long ProductPrice;
try
{
// hey you never know, someone might just put in an int64 in that textbox!
ProductPrice = Convert.ToInt32(PriceLabel.Text) *
Convert.ToInt32(ProductQuantity.Text);
}
catch
{
decimal tempPrice = Convert.ToDecimal(PriceLabel.Text) *
Convert.ToDecimal(ProductQuantity.Text);
ProductPrice = Convert.ToInt64(tempPrice);
}

Most direct way to how you are currently doing:
var ProductPrice = Convert.ToDecimal(PriceLabel.Text) * Convert.ToDecimal(ProductQuantity.Text);
this will throw an exception if the value cannot be converted to a decimal. Decimal.TryParse() would be better.
https://msdn.microsoft.com/en-us/library/system.decimal.tryparse(v=vs.110).aspx

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<td>
<asp:CheckBox ID="chkEmail" runat="server"
AutoPostBack="true" />
</td>
<td class="cLabel" style="width: 15%">
<asp:Label ID="lblEmail" runat="server" Text="Email:" Width="90px"></asp:Label>
</td>
<td>
<asp:TextBox ID="txtEmail" runat="server" CssClass="cText" Width="150px" MaxLength="75"></asp:TextBox>
</td>
</tr>
<tr>
<td>
<asp:CheckBox ID="chkOther" runat="server"
AutoPostBack="true" />
</td>
<td class="cLabel" style="width: 15%">
<asp:Label ID="lblOther" runat="server" Text="Other:" Width="90px "></asp:Label>
</td>
<td>
<asp:TextBox ID="txtOther" runat="server" CssClass="cText" Width="150px" MaxLength="75"></asp:TextBox>
</td>
</tr>
<tr>
<td colspan="4">
<div class="buttons">
<span id="span2" class="cBtnLeft"><span class="cBtnMid"><span class="cBtnRight">
<asp:Button ID="btnDownLoad" runat="server" Width="65px" CssClass="cBtnRight" Text="Download"
OnClick="btnDownLoad_Click"/>
</span></span></span><span id="span1" class="cBtnLeft"><span class="cBtnMid"><span
class="cBtnRight">
<asp:Button ID="btnCancel" runat="server" Width="65px" CssClass="cBtnRight" Text="Cancel"
Visible="true" OnClick="btnCancel_Click" />
</span></span></span>
</div>
</td>
</tr>
</table>
</div>
</dx:PanelContent>
</PanelCollection>
</dx:ASPxPanel>
</dx:PopupControlContentControl>
</ContentCollection>
</dx:aspxpopupcontrol>
</div>
Usercontrol where the popup user control is called
<asp:Panel runat="server" ID="pnlCategoryDetail" Width="100%">
<dx:ASPxDataView ID="dvMARCCategoryDetail" runat="server" Width="100%"
ClientInstanceName="dvMARCCategoryDetail" style="clear: both" ColumnCount="2" RowsPerPage="2" OnPageIndexChanged="dvMARCCategoryDetail_PageIndexChanged">
<itemtemplate>
<table>
<tbody>
<tr>
<td>
<table>
<tr>
<td>
<asp:Image ID="ModelImage" runat="server" ImageUrl='<%#Eval("ImageUrl") %>'>
</asp:Image>
</td>
<td>
<div style="width: 5px" class="Spacer">
</div>
</td>
</tr>
</table>
</td>
<td>
<table>
<tr>
<td>
<asp:Label ID="ModelLabel" runat="server" Text='<%# Eval("DocumentName") %>' Font-Bold="True"
>
</asp:Label></td>
</tr>
<tr>
<td style="text-align:left;padding-bottom:1em;">
<asp:Label ID ="txtText1" runat="server" Text="The May edition of News Brief contains seven newsworthy articles"></asp:Label>
</td>
</tr>
<tr>
<td>
<asp:Label ID ="txtText2" runat="server" Text="Suggested Subject Line: The May 2014 News Brief has arrived!"></asp:Label>
</td>
</tr>
<tr>
<td style="white-space:nowrap;">
<a id="clink2" style="width:60px">Content Link 1</a>
<asp:ImageButton ID="ImageButton2" runat="server" OnClick="btnArrow_Click" ImageUrl="~/Images/DownloadArrow.png" ToolTip="Download Item" style="padding-top:8px"/>
<asp:ImageButton ID="ImageButton1" runat="server" OnClick="btnAdd_Click" ImageUrl="~/Images/Add.png" ToolTip="Add Item" style="padding-top:8px"/>
</td>
<td> </td></tr>
</table>
</td>
</tr>
</tbody>
</table>
</itemtemplate>
<paddings padding="0px" />
<itemstyle height="50px">
</itemstyle>
</dx:ASPxDataView>
</asp:Panel>
<div id="divCategoryPopup" runat="server">
<downloadPopUp:categoryPopup id="ctlPopUp" runat="server"></downloadPopUp:categoryPopup>
</div>
On click of btnArrow_Click the popup user control should be displayed

how to pop up two modalpopup in gridview

I want to pop up two modalpopup from a gridview. I searched online but couldn't find the exact answer. Any help is appreciated.
--------ModalPopupExtender1---------
<asp:ModalPopupExtender ID="ModalPopupExtender1" runat="server"
BackgroundCssClass="ModalPopupBG" CancelControlID="btn_Cancel" Drag="true"
PopupControlID="Panel2" PopupDragHandleControlID="Panel2"
TargetControlID="btnNew">
</asp:ModalPopupExtender>
-----------------PopupControlID="Panel2--------------------------
<div id="Panel2" class="popupConfirmation">
<div class="popup_Container">
<div id="PopupHeader" class="popup_Titlebar">
<div class="TitlebarLeft">
<%--
<asp:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server">
</asp:ToolkitScriptManager>
--%>
Edit Customer
</div>
<!--
<div class="TitlebarRight" >
</div>
-->
</div>
<div>
<table bgcolor="#CCFFFF" cellpadding="0" cellspacing="2" width="100%">
<tr>
<td width="5%">
</td>
<td width="25%">
</td>
<td width="65%">
</td>
<td width="5%">
</td>
</tr>
<tr>
<td width="5%">
</td>
<td style="text-align: right" width="25%">
<asp:LabelID="lblName"runat="server"FontSize="11pt" Text="First Name:">
</asp:Label>
</td>
<td style="text-align: left" width="65%">
<asp:TextBox ID="txtFirstName" runat="server" Width="300px">
</asp:TextBox>
<asp:Label ID="lbl_ErrorName" runat="server" ForeColor="Red"
style="display:none" Text="*">
</asp:Label>
</td>
<td width="5%">
</td>
</tr>
<tr>
<td width="5%">
</td>
<td style="text-align: right" width="25%">
<asp:Label ID="lblName2" runat="server" Font-Size="11pt" Text="Second Name:">
</asp:Label>
</td>
<td style="text-align: left" width="65%">
<asp:TextBox ID="txtSecondName" runat="server" Width="300px">
</asp:TextBox>
</td>
<td width="5%">
</td>
</tr>
<%--
<tr>
<td width="5%">
</td>
<td style="text-align: right" width="45%">
<asp:Label ID="lblName0" runat="server" Font-Size="11pt" Text="City">
</asp:Label>
</td>
<td style="text-align: left" width="45%">
<asp:TextBox ID="txtCity" runat="server" Width="200px">
</asp:TextBox>
</td>
<td width="5%">
</td>
<td width="5%">
</td>
</tr>
<tr>
<td width="5%">
</td>
<td style="text-align: right" width="45%">
<asp:Label ID="lblName1" runat="server" Font-Size="11pt" Text="State">
</asp:Label>
</td>
<td style="text-align: left" width="45%">
<asp:TextBox ID="txtState" runat="server" Width="200px">
</asp:TextBox>
</td>
<td width="5%">
</td>
<td width="5%">
</td>
</tr>
--%>
<tr>
<td width="5%">
</td>
<td style="text-align: right" width="25%">
<asp:Label ID="lblAddress1" runat="server" Font-Size="11pt" Text="Address1:">
</asp:Label>
</td>
<td style="text-align: left" width="65%">
<asp:TextBox ID="txtAddress1" runat="server" Width="300px">
</asp:TextBox>
<asp:Label ID="lbl_ErrorAddress1" runat="server" ForeColor="Red"
style="display:none" Text="*">
</asp:Label>
</td>
<td width="5%">
</td>
</tr>
<%--
<tr>
<td width="5%">
</td>
<td style="text-align: right" width="45%">
<asp:Label ID="lblAddress2" runat="server" Font-Size="11pt" Text="Address2:">
</asp:Label>
</td>
<td style="text-align: left" width="45%">
<asp:TextBox ID="txtAddress2" runat="server" Width="200px">
</asp:TextBox>
</td>
<td width="5%">
</td>
<td width="5%">
</td>
</tr>
--%>
<tr>
<td width="5%">
</td>
<td style="text-align: right" width="25%">
<asp:Label ID="lblDOB" runat="server" Font-Size="11pt" Text="Phone">
</asp:Label>
</td>
<td style="text-align: left" width="65%">
<asp:TextBox ID="txtPhone" runat="server" Width="200px">
</asp:TextBox>
<%--
<asp:CalendarExtender ID="txt_DOB_CalendarExtender" runat="server"
TargetControlID="txt_DOB">
</asp:CalendarExtender>
--%>
<asp:Label ID="lblErrorDOB" runat="server" Font-Bold="True" ForeColor="Red"
style="display:none" Text="*">
</asp:Label>
</td>
<td width="5%">
</td>
</tr>
<tr>
<td width="5%">
</td>
<td style="text-align: right" width="25%">
<asp:Label ID="lblDOB0" runat="server" Font-Size="11pt" Text="Mobile">
</asp:Label>
</td>
<td style="text-align: left" width="65%">
<asp:TextBox ID="txtMobile" runat="server" Width="200px">
</asp:TextBox>
</td>
<td width="5%">
</td>
</tr>
<tr>
<td width="5%">
</td>
<td style="text-align: right" width="25%">
</td>
<td style="text-align: left" width="65%">
</td>
<td width="5%">
</td>
</tr>
</table>
</div>
<div align="center">
<asp:Button ID="btn_Update" runat="server"
Text="Save" Width="75px" onclick="btn_Update_Click" />
<asp:Button ID="btn_Cancel" runat="server" Text="Cancel" Width="75px" />
</div>
</div>
</div>
----------------`ModalpopUp`----------------------------
<asp:ModalPopupExtender ID="ModalPopUp" runat="server"
CancelControlID="idclose" Drag="true" DynamicServicePath="" Enabled="True"
PopupControlID="PartyCustomers_idbody"
PopupDragHandleControlID="PartyCustomers_IdTitle"
TargetControlID="btnShowPopup">
<Animations>
<OnShown><Fadein Duration="0.50" /></OnShown>
<OnHiding><Fadeout Duration="0.75" /></OnHiding>
</Animations>
</asp:ModalPopupExtender>
--------------------PartyCustomers_idbody : popupbody--------------
`<div id="PartyCustomers_idbody" runat="server" class="Common_divbody"
>
<div id="PartyCustomers_IdTitle" runat="server" class="Common_divtitle"
>
<div id="idclose" class="Common_close">
</div>
<div class="Common_divhr">
Booked Status</div>
</div>
<div class="ModalPopUpDiv">
<asp:Label ID="lblmessage1" runat="server" Text="Label"></asp:Label>
<asp:GridView ID="dgvSystemDetails" runat="server" AllowPaging="True"
AllowSorting="True" AlternatingRowStyle-CssClass="alt"
AutoGenerateColumns="False" CellSpacing="2" CssClass="mGrid" Font-Bold="True"
Font-Names="Arial" Font-Size="Small" PageSize="12"
Width="750px" DataKeyNames="SystemCode"
onrowdatabound="dgvSystemDetails_RowDataBound">
<AlternatingRowStyle CssClass="alt" />
<Columns>
<asp:BoundField DataField="RegistrationDate" DataFormatString="{0:d}"
HeaderText="Registration Date">
<HeaderStyle />
<ItemStyle />
</asp:BoundField>
<asp:BoundField DataField="SystemCode" HeaderText="System Code" />
<asp:BoundField DataField="Reg_Status" HeaderText="Reg. Status" />
<asp:BoundField DataField="Key" HeaderText="Key" />
<asp:TemplateField>
<ItemTemplate>
<asp:Button ID="btnBlock" runat="server" CssClass="Common_button"
Text="Block" onclick="btnBlock_Click" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</div>
</div>`
--------------------------------cs-: RowCommand---code--------------------------
protected void dgvActivatedCustomers_RowCommand1(object sender, GridViewCommandEventArgs e)
{
//Load System details gridview in modalpop up...
if(e.CommandName=="Select")
{
DataSet ds;
int RowIndex = Convert.ToInt32(e.CommandArgument);
long ProductSerialID = Convert.ToInt32(dgvActivatedCustomers.DataKeys[RowIndex].Values["ProductSerialID"]) ;
hdnProuductId.Value= dgvActivatedCustomers.DataKeys[RowIndex].Values["ProductSerialID"].ToString();
lblmessage1.Visible = true;
//string RegStatus = dgvSystemDetails.SelectedRow.Cells[2].Text;
string ProductSerial = dgvActivatedCustomers.Rows[RowIndex].Cells[6].Text;
string Reg_Status = LoadSystemDetails(ProductSerialID).Tables[0].Rows[0]["Reg_Status"].ToString();
lblmessage1.Text = "Activation Code :" + General.GetActivationCode(Convert.ToDouble(ProductSerial)).ToString();
LoadSystemDetails(ProductSerialID);
ds = LoadSystemDetails(ProductSerialID);
//filling data table
DataTable dt = (DataTable)dgvSystemDetails.DataSource;
//Add new columns to datatable
dt.Columns.Add("Key", typeof(System.Int64));
// get key for specific key by passing system code ot getRegistrationKey.
for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
{
string SystemCode = ds.Tables[0].Rows[i]["SystemCode"].ToString();
//lblmessage2.Text = "Key :" + Registration.getRegistrationKey(SystemCode, ProductSerial);
string Key = Registration.getRegistrationKey(SystemCode, ProductSerial);
dt.Rows[i]["Key"] = Key;
}
Session["dgvSystemDetailsDataSource"] = dt;
dgvSystemDetails.DataSource = dt;
dgvSystemDetails.DataBind();
dgvSystemDetails.Visible = true;
if (Reg_Status == "Blocked")
{
lblmessage1.Visible = true;
lblmessage1.Text = "Blocked System";
//dgvSystemDetails.FindControl("btnBlock").Visible = false;
dgvSystemDetails.DataSource = Session["dgvSystemDetailsDataSource"];
dgvSystemDetails.DataBind();
ModalPopUp.Show();
}
ModalPopUp.Show();
}
}
description :btnclick second popup--------------
protected void Button1_Click(object sender, EventArgs e)
{
try
{
Button btn = (Button)sender;
GridViewRow row = (GridViewRow)btn.NamingContainer;
int rowno = row.RowIndex;
txtFirstName.Text = dgvActivatedCustomers.DataKeys[rowno].Values["CustomerName"].ToString();
txtSecondName.Text = dgvActivatedCustomers.DataKeys[rowno].Values["CustomerLName"].ToString();
txtAddress1.Text = (dgvActivatedCustomers.Rows[rowno].Cells[4].Text != " " ? dgvActivatedCustomers.Rows[rowno].Cells[4].Text : "");
txtPhone.Text = (dgvActivatedCustomers.Rows[rowno].Cells[2].Text != " " ? dgvActivatedCustomers.Rows[rowno].Cells[2].Text : "");
txtMobile.Text = (dgvActivatedCustomers.Rows[rowno].Cells[3].Text != " " ? dgvActivatedCustomers.Rows[rowno].Cells[3].Text : "");
hdnId.Value = dgvActivatedCustomers.DataKeys[rowno].Values["CustomerID"].ToString();
txtName.Text = (dgvDemoCust.SelectedRow != "") ? dgvDemoCust.SelectedRow.Cells[0].Text : "";
ModalPopupExtender1.Show();
}
catch (Exception ex) { }
}
Question : The first pop up is showing but the second one doesn't.....any body have any idea

how find and give css class to a control in side layout template of listview?

I have a listview control and in layout template, i have linkbuttons. Now what i want to do. i have a span with each linkbutton. i want to give css class while we click on linkbutton. my html code is as follow:
<asp:ListView ID="lst_CallType" runat="server" ItemPlaceholderID="tr" OnItemDataBound="lst_CallType_ItemDataBound">
<LayoutTemplate>
<table cellspacing="0">
<tr class="hdrRowColor1">
<td align="left" width="500px">
<asp:LinkButton ID="lnk_Name" runat="server" ValidationGroup="vgSearch" OnClientClick="changeSortState();"
CommandArgument="tblCallTypenew.CallType" OnClick="lnk_Sort">Name</asp:LinkButton>
<span id="imgSortPosition" class="sortNotSelected"></span>
</td>
<td align="left" width="80px">
<asp:LinkButton ID="lnk_Status" runat="server" CommandArgument="tblCallTypenew.isactive"
ValidationGroup="vgSearch" OnClick="lnk_Sort">Status</asp:LinkButton>
<span id="Span1" class="sortNotSelected"></span>
</td>
<td align="left" width="200px">
<asp:LinkButton ID="lnk_CreatedOn" runat="server" CommandArgument="tblCallTypenew.CreatedDate"
ValidationGroup="vgSearch" OnClick="lnk_Sort">Created On</asp:LinkButton>
<span id="Span2" class="sortNotSelected"></span>
</td>
<td align="left" width="200px">
<asp:LinkButton ID="lnk_LastModfiedOn" runat="server" CommandArgument="tblCallTypenew.ModifiedDate"
ValidationGroup="vgSearch" OnClick="lnk_Sort">Last Modified On</asp:LinkButton>
<span id="Span3" class="sortNotSelected"></span>
</td>
<td align="left" width="200px">
<asp:LinkButton ID="lnk_CreatedBy" runat="server" CommandArgument="tblUserNew.FirstName"
ValidationGroup="vgSearch" OnClick="lnk_Sort">Created By</asp:LinkButton>
<span id="Span4" class="sortNotSelected"></span>
</td>
<td align="left" width="200px">
<%--<asp:LinkButton ID="lnkCreatedDate" runat="server" CommandArgument="tblUserActivities.CreatedDate"
OnClick="lnk_Sort">Created Date</asp:LinkButton>--%>
<asp:LinkButton ID="lnk_LastModfiedBy" runat="server" CommandArgument="v.FirstName"
ValidationGroup="vgSearch" OnClick="lnk_Sort">Modified By</asp:LinkButton>
<span id="Span5" class="sortNotSelected"></span>
</td>
<td align="left" style="border-right: 1px solid #6398cc">
Activity
<div style="width: 50px; float: right;">
</div>
</td>
</tr>
<tr id="tr" runat="server">
</tr>
</table>
</LayoutTemplate>
<ItemTemplate>
<tr class='<%# Convert.ToBoolean(Container.DataItemIndex % 2) ? "EvenRowColor" : "OddRowColor" %>'>
<td align="left">
<asp:Label ID="lblDeptId" runat="server" Text='<%# Eval("ID")%>' Visible="false"></asp:Label>
<%# Eval("Calltype")%>
</td>
<td align="left">
<asp:Label ID="lbl_Status" runat="server" Style="display: none;" Text='<%# Eval("IsActive")%>'></asp:Label>
<asp:ImageButton ID="imgbtnStatus" runat="server" CommandArgument='<%# Eval("id") %>'
OnClick="imgbtnStatus_Onclick" />
</td>
<td align="left">
<%# Eval("CreatedDate")%>
</td>
<td align="left">
<%# Eval("ModifiedDate") %>
</td>
<td align="left">
<%# Eval("CreatedBy")%>
</td>
<td align="left">
<%# Eval("ModifiedBy")%>
</td>
<td>
<asp:Label ID="lblCallType" runat="server" Style="display: none;" Text='<%# Eval("Calltype")%>'></asp:Label>
<asp:ImageButton ID="imgbtnEdit" runat="server" ImageUrl="~/App_Themes/ThemeNew/Images/edit.png"
ToolTip="Edit Details" CommandArgument='<%# Eval("ID") %>' OnClick="imgbtnEdit_OnClick" />
<asp:ImageButton ID="imgbtnDelete" runat="server" ImageUrl="~/App_Themes/ThemeNew/Images/delete.png"
ToolTip="Delete" Style="display: none;" CommandArgument='<%# Eval("id") %>' OnClientClick="return confirm('Are you sure you want to delete the Call type?');"
OnClick="imgbtnDelete_OnClick" />
</td>
</tr>
</ItemTemplate>
</asp:ListView>
Actually i want to show sort images while user click on linkbuttons.And i want to do it by code behind.
My .cs code is as follow:
protected void lnk_Sort(object sender, EventArgs e)
{
LinkButton lnk = (LinkButton)sender;
string arg = lnk.CommandArgument.ToString();
ViewState["sortCol"] = arg;
GetSortDirection();
BindData(ViewState["sortCol"].ToString(), ViewState["sortDir"].ToString(), Convert.ToInt32(ViewState["nmbr"]), Pager.PageSize);
}
private void GetSortDirection()
{
if (Convert.ToString(ViewState["sortDir"]) == "Desc")
{
ViewState["sortDir"] = "asc";
}
else
{
ViewState["sortDir"] = "Desc";
}
}

You can do a findcontrol in Listview_sorting event

i have done it with a silly trick
my html code is:
<asp:ListView ID="lst_CallType" runat="server" ItemPlaceholderID="tr" OnItemDataBound="lst_CallType_ItemDataBound">
<LayoutTemplate>
<table cellspacing="0">
<tr class="hdrRowColor1">
<td width="35px" align="left">
S.No
</td>
<td align="left" width="300px">
<asp:LinkButton ID="lnk_Name" runat="server" ValidationGroup="vgSearch" CommandArgument="tblCallTypenew.CallType"
OnClick="lnk_Sort">Name</asp:LinkButton>
<asp:Image ID="img_lnk_Name" Visible="false" runat="server" />
</td>
<td align="left" width="150px">
<asp:LinkButton ID="lnk_CreatedBy" runat="server" CommandArgument="tblUserNew.FirstName"
ValidationGroup="vgSearch" OnClick="lnk_Sort">Created By</asp:LinkButton>
<asp:Image ID="img_lnk_CreatedBy" Visible="false" runat="server" />
</td>
<td align="left" width="120px">
<asp:LinkButton ID="lnk_CreatedOn" runat="server" CommandArgument="tblCallTypenew.CreatedDate"
ValidationGroup="vgSearch" OnClick="lnk_Sort">Created On</asp:LinkButton>
<asp:Image ID="img_lnk_CreatedOn" Visible="false" runat="server" />
</td>
<td align="left" width="150px">
<%--<asp:LinkButton ID="lnkCreatedDate" runat="server" CommandArgument="tblUserActivities.CreatedDate"
OnClick="lnk_Sort">Created Date</asp:LinkButton>--%>
<asp:LinkButton ID="lnk_LastModfiedBy" runat="server" CommandArgument="v.FirstName"
ValidationGroup="vgSearch" OnClick="lnk_Sort">Last Modified By</asp:LinkButton>
<asp:Image ID="img_lnk_LastModfiedBy" Visible="false" runat="server" />
</td>
<td align="left" width="120px">
<asp:LinkButton ID="lnk_LastModfiedOn" runat="server" CommandArgument="tblCallTypenew.ModifiedDate"
ValidationGroup="vgSearch" OnClick="lnk_Sort">Last Modified On</asp:LinkButton>
<asp:Image ID="img_lnk_LastModfiedOn" Visible="false" runat="server" />
</td>
<td align="center" width="55px">
<asp:LinkButton ID="lnk_Status" runat="server" CommandArgument="tblCallTypenew.isactive"
ValidationGroup="vgSearch" OnClick="lnk_Sort">Status</asp:LinkButton>
<asp:Image ID="img_lnk_Status" Visible="false" runat="server" />
</td>
<td align="center" width="50px" style="border-right: 1px solid #6398cc">
Activity
<%-- <div style="width: 50px; float: right;">
</div>--%>
</td>
</tr>
<tr id="tr" runat="server">
</tr>
</table>
</LayoutTemplate>
<ItemTemplate>
<tr class='<%# Convert.ToBoolean(Container.DataItemIndex % 2) ? "EvenRowColor" : "OddRowColor" %>'>
<td align="left" valign="middle">
<%# Container.DataItemIndex+1 %>.
</td>
<td align="left">
<asp:Label ID="lblDeptId" runat="server" Text='<%# Eval("ID")%>' Visible="false"></asp:Label>
<%# Eval("Calltype")%>
</td>
<td align="left">
<%# Eval("CreatedBy")%>
</td>
<td align="left">
<%# Convert.ToDateTime(Eval("CreatedDate")).ToString("MMM dd, yyyy")%>
</td>
<td align="left">
<%# Eval("ModifiedBy")%>
</td>
<td align="left">
<%# Convert.ToDateTime(Eval("ModifiedDate")).ToString("MMM dd, yyyy")%>
</td>
<td align="center">
<asp:Label ID="lbl_Status" runat="server" Style="display: none;" Text='<%# Eval("IsActive")%>'></asp:Label>
<asp:ImageButton ID="imgbtnStatus" runat="server" CommandArgument='<%# Eval("id") %>'
OnClick="imgbtnStatus_Onclick" />
</td>
<td class="last" align="center">
<asp:Label ID="lblCallType" runat="server" Style="display: none;" Text='<%# Eval("Calltype")%>'></asp:Label>
<asp:ImageButton ID="imgbtnEdit" runat="server" ImageUrl="~/App_Themes/ThemeNew/Images/edit.png"
ToolTip="Edit Details" CommandArgument='<%# Eval("ID") %>' OnClick="imgbtnEdit_OnClick" />
<asp:ImageButton ID="imgbtnDelete" runat="server" ImageUrl="~/App_Themes/ThemeNew/Images/delete.png"
ToolTip="Delete" Style="display: none;" CommandArgument='<%# Eval("id") %>' OnClientClick="return confirm('Are you sure you want to delete the Call type?');"
OnClick="imgbtnDelete_OnClick" />
</td>
</tr>
</ItemTemplate>
</asp:ListView>
My code behind code is:
protected void lnk_Sort(object sender, EventArgs e)
{
LinkButton lnk = (LinkButton)sender;
string arg = lnk.CommandArgument.ToString();
ViewState["sortCol"] = arg;
GetSortDirection();
BindData(ViewState["sortCol"].ToString(), ViewState["sortDir"].ToString(), Convert.ToInt32(ViewState["nmbr"]), Pager.PageSize);
string name = lnk.ID;
Image img = (Image)(lst_CallType.FindControl("img_" + name));
if (img != null)
{
SetSortOrderImage(img, ViewState["sortDir"].ToString());
}
}
private void SetSortOrderImage(Image image, String sortorder)
{
if (sortorder == "asc")
{
image.Visible = true;
image.ImageUrl = "../App_Themes/ThemeNew2/images/up.png";
}
else if (sortorder == "Desc")
{
image.Visible = true;
image.ImageUrl = "../App_Themes/ThemeNew2/images/down.png";
}
}

Why can I not obtain the value of a textbox in a FormView?

So, I was having some issues obtaining the value of of an ASP TextBox Server Control while it was in a FormView. Here is the code.
<EditItemTemplate>
<table>
<tr>
<td>
<div style="margin-bottom: 10px; font-family:Calibri;">
Project Number
</div>
</td>
<td colspan="2">
<asp:TextBox ID="projectidbox" runat="server" Width="90%" Style="margin-bottom: 10px;"
Text='<%# Bind("ProjectID") %>'></asp:TextBox>
</td>
</tr>
<tr>
<td style=" font-family:Calibri;">
Project Name
</td>
<td>
<asp:TextBox ID="NameBox" runat="server" Width="90%" Text='<%# Bind("Name") %>'> </asp:TextBox>
</td>
<td style=" font-family:Calibri;">
Project Start
</td>
<td>
<asp:TextBox ID="dateStartedBox" runat="server" Width="90%" Text='<%# Bind("DateStarted")%>'></asp:TextBox>
</td>
<td style=" font-family:Calibri;">
Project End
</td>
<td>
<asp:TextBox ID="dateFinishedBox" runat="server" Width="102%" Text='<%# Bind("DateFinished")%>'></asp:TextBox>
</td>
</tr>
<tr>
<td style=" font-family:Calibri;">
Total Cost ($)
</td>
<td>
<asp:TextBox ID="TotalCostBox" runat="server" Width="90%" Text='<%# Bind("TotalCost")%>'></asp:TextBox>
</td>
<td style=" font-family:Calibri;">
Assess. Start
</td>
<td>
<asp:TextBox ID="assessmentStartBox" runat="server" Width="70%" Text='<%# Bind("BeginTerm")%>'></asp:TextBox>
</td>
<td style=" font-family:Calibri;">
Assess. End
</td>
<td>
<asp:TextBox ID="assessmentEndBox" runat="server" Width="90%" Text='<%# Bind("EndTerm")%>'></asp:TextBox>
</td>
</tr>
<tr>
<td style=" font-family:Calibri;">
Assessable Area
</td>
<td>
<asp:TextBox ID="AssessableFrontageBox" runat="server" Width="90%" Text='<%# Bind("AssessableFrontage")%>'></asp:TextBox>
</td>
<td style=" font-family:Calibri;">
Ordinance
</td>
<td>
<asp:TextBox ID="ordinancebox" runat="server" Width="70%" Text='<%# Bind("Ordinance")%>'></asp:TextBox>
</td>
<td style=" font-family:Calibri;">
Calc Field
</td>
<td>
<asp:TextBox ID="calcfieldbox" runat="server" Width="90%" Text='<%# Bind("CalcField")%>'></asp:TextBox>
</td>
</tr>
<tr>
<td style=" font-family:Calibri;">
Total Intersections
</td>
<td>
<asp:TextBox ID="intersectionsbox" runat="server" Width="90%" Text='<%# Bind("TotalIntersections") %>'></asp:TextBox>
</td>
<td style=" font-family:Calibri;">
County ID
</td>
<td>
<asp:TextBox ID="countyidbox" runat="server" Width="70%" Text='<%# Bind("CountyID") %>'></asp:TextBox>
</td>
<td style=" font-family:Calibri;">
Adjustment
</td>
<td>
<asp:TextBox ID="adjustmentbox" runat="server" Width="90%" Text='<%# Bind("Adjustment") %>'></asp:TextBox>
</td>
</tr>
<tr>
<td style=" font-family:Calibri;">
Sum Assessments
</td>
<td>
<asp:TextBox ID="sumassessbox" runat="server" Width="90%" Text='<%# Eval("SumAssessments")%>'></asp:TextBox>
</td>
<td style=" font-family:Calibri;">
Status
</td>
<td>
<asp:DropDownList ID="DropDownList1" runat="server" Width="75%" Height="22px" DataValueField="Status">
<asp:ListItem></asp:ListItem>
<asp:ListItem>Pre-Planning</asp:ListItem>
<asp:ListItem>Active</asp:ListItem>
<asp:ListItem>Complete</asp:ListItem>
<asp:ListItem>Cancelled</asp:ListItem>
</asp:DropDownList>
</td>
<td colspan="2">
<asp:RadioButtonList ID="RadioButtonList1" runat="server" RepeatDirection="Horizontal">
<asp:ListItem>Ln Ft</asp:ListItem>
<asp:ListItem>Acre</asp:ListItem>
<asp:ListItem>Flat</asp:ListItem>
</asp:RadioButtonList>
</td>
</tr>
<tr>
<td style="font-family:Calibri;"> Comments </td>
</tr>
<tr>
<td colspan="6">
<asp:TextBox ID="TextBox9" runat="server" TextMode="MultiLine" Width="90%" Text='<%# Bind("Comment") %>'></asp:TextBox>
</td>
</tr>
</table>
</EditItemTemplate>

You can use the FindControl function to seach for the text box.
var textbox = (TextBox)GridView.FindControl("txtName);
if (textbox != null)
{
//working goes here.
}

Develop Reference

C# (C-Sharp) is a programming language developed by Microsoft that runs on the .NET Framework.

Decimal point in "Convert.ToInt" statement causing Format Error? - c#

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