I have some problems inserting a const "1" into a textbox which is gridview.
The gridview code:
<asp:GridView ID="GridView2" runat="server" AutoGenerateColumns="False" EnableViewState="False">
<Columns>
<asp:BoundField DataField="Price" HeaderText="Price" ItemStyle-CssClass="price" >
<ItemStyle CssClass="price"></ItemStyle>
</asp:BoundField>
<asp:TemplateField HeaderText="ProductID">
<ItemTemplate>
<asp:Label ID="lblID" runat="server" Text='<%# Eval("ProductID") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="ProductName">
<ItemTemplate>
<asp:Label ID="lblName" runat="server" Text='<%# Eval("ProductName") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Summary">
<ItemTemplate>
<asp:Label ID="lblSum" runat="server" Text='<%# Eval("Summary") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="picPath">
<ItemTemplate>
<asp:Label ID="lblPic" runat="server" Text='<%# Eval("picPath") %>' ></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText = "quantity">
<ItemTemplate>
<asp:TextBox ID="lblquantity" runat="server" ></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText = "Total">
<ItemTemplate>
<asp:Label ID="lblTotal" runat="server" ></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
All the information is populated from the session of the previous page, beside this textbox which doesn't comes from anywhere, it's a quantity textbox which the user should enter. And I want it to have a default value of "1".
I don't actually know how to insert into a textbox which is in the gridview.
Please help me.
Thanks
This may be because code is also checking for Header and footer template..
just put a null check before settings value...
TextBox tb = (TextBox)e.Row.FindControl("lblquantity");
if(tb!=null)
tb.Text = Convert.ToString(123);
This will surely work...
<asp:TemplateField HeaderText = "quantity">
<ItemTemplate>
<asp:TextBox ID="lblquantity" runat="server" Text='<%# Eval("quantity") == DBNull.Value ? "1" : Eval("quantity").ToString()' ></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
if quantity value is null in the table, then Text property will be default 1. Otherwise it will be quantity column in the table.
You can put chis code in your GridView's RowDataBound event...
TextBox tb = (TextBox)e.Row.FindControl("lblquantity");
tb.Text = Convert.ToString(123);
I hope this helps...
Related
I am trying to delete rows from ASP.NET GridView and for demo purpose, I am trying to retrieve names from the rows right now. In the ItemTemplate of the GridView, I've included Label that has id as well name to show. Finally added Button control in the GridView to delete specific rows and tried the following:
<asp:GridView ID="grdData" runat="server" AutoGenerateColumns="false">
<Columns>
<asp:TemplateField HeaderText="Id">
<ItemTemplate>
<asp:Label ID="lblId" runat="server" Text='<%# Eval("ProductId") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Name">
<ItemTemplate>
<asp:Label ID="lblName" runat="server" Text='<%# Eval("Name") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:Button ID="btnShow" runat="server" Text="Button" OnClick="btnShow_Click" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
<asp:Label ID="lblMsg" runat="server"></asp:Label>
In the code-behind, I've iterated the GridView with a loop to get the individual values, say name of the row as follows:
protected void btnShow_Click(object sender, EventArgs e)
{
foreach (GridViewRow row in grdData.Rows)
{
string val = ((Label)row.FindControl("lblName")).Text;
lblMsg.Text = val;
}
}
But unfortunately I get the last name every time I click any row button and here is the screen-shot that I am trying:
Whenever I click any button, it shows the last name Ice-Cream every time. Anything that I missed here?
<asp:GridView ID="grdData" runat="server" AutoGenerateColumns="false">
<Columns>
<asp:TemplateField HeaderText="Id">
<ItemTemplate>
<asp:Label ID="lblId" runat="server" Text='<%# Eval("ProductId") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Name">
<ItemTemplate>
<asp:Label ID="lblName" runat="server" Text='<%# Eval("Name") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:Button ID="btnShow" runat="server" Text="Button" OnClick="btnShow_Click" CommandArgument='<%# Eval("Name") %>' />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
<asp:Label ID="lblMsg" runat="server"></asp:Label>
protected void btnShow_Click(object sender, EventArgs e)
{
lblMsg.Text = (sender as Button).CommandArgument;
}
I have following grid
<asp:GridView ID="grdDWlocations" CssClass="table table-hover table-striped" runat="server" GridLines="None" ShowHeaderWhenEmpty="True"
EmptyDataText="No data found..." AutoGenerateColumns="False">
<Columns>
<asp:TemplateField HeaderText="" Visible="true">
<HeaderTemplate>
<asp:CheckBox ID="allDWlocchk" runat="server" Checked="true" Width="10px" onclick="CheckAllgrdReqDW(this)"></asp:CheckBox>
</HeaderTemplate>
<ItemTemplate>
<asp:CheckBox ID="chk_DWlocReq" runat="server" Checked="true" Width="5px" OnCheckedChanged="chk_Req_CheckedChangedDW_Click" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Code">
<ItemTemplate>
<asp:Label ID="lbl_DWCode" runat="server" Text='<%# Bind("Ml_loc_cd") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Description">
<ItemTemplate>
<asp:Label ID="lbl_DWDescription" runat="server" Text='<%# Bind("Ml_loc_desc") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
I want to assign a value for 'allDWlocchk' which is header check,
how can I do this in code behind
I tried this none of the thing worked
Attempt 1 :
((CheckBox)(grdDWlocations).FindControl("allDWlocchk")).Checked = false;
Attempt 2 :
((CheckBox).FindControl("allDWlocchk")).Checked = false;
You are on the right track, FindControl is the way to go here. But the problem is that it only works with direct children. So instead of searching on the Page or on the GridView you need to be searching in the header row. Which is available as the GridView property. So:
GridViewRow headerRow = grdDWlocations.HeaderRow;
((CheckBox)headerRow.FindControl("allDWlocchk")).Checked = false;
[SOLVED], used Ondrej Svejdar's answer.
I'm using :
<asp:TemplateField HeaderText="Created By" SortExpression="User.Firstname">
<ItemTemplate>
<asp:Label ID="User" runat="server" Text='<%#Bind("User.Firstname")'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
Which shows on my form like this: Created By Firstname.
But I want to make it look like this : Created By Firstname Lastname. How do I attach another string inside the "SortExpression" and "Text" ?
Like this:
<asp:TemplateField HeaderText="Created By" SortExpression="User.Firstname,User.Lastname">
<ItemTemplate>
<asp:Label ID="lblUser" runat="server" Text='<%# string.Format("{0} {1}", Eval("User.Firstname"), Eval("User.Lastname")) %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
Beware that sorting by multiple columns, may not always give you what you want:
http://forums.asp.net/t/1236912.aspx/1
Can you not use
<asp:TemplateField HeaderText="Created By" SortExpression="User.Firstname, User.Lastname">
<ItemTemplate>
<asp:Label ID="User" runat="server" Text='<%#Bind("User.Firstname") <%#Bind("User.Lastname")'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
try this
<asp:TemplateField HeaderText="Created By" SortExpression="User.Firstname,User.Lastname">
<ItemTemplate>
<asp:Label ID="User" runat="server" Text='<%#(Eval("User.Firstname").ToString()+ " " + Eval("User.Lastname").ToString() %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
I have an ajax tab which inside has a grid, on this grid there is a check box where the user has the ability to check it and assign it to a technician, but for some reason im unable to reference the control, the grid has a total of 4 rows so there is data there, this is my code which is run of a button click
protected void btnAllocate_click(object sender, EventArgs e)
{
foreach (System.Web.UI.Control s in tbHappyCall.Controls)
{
foreach (GridViewRow Row in gvHappyCall.Rows)
{
CheckBox chkAllocate = (CheckBox)Row.FindControl("chkAllocate");
if (chkAllocate.Checked)
{
HyperLink lblOrderID = (HyperLink)Row.FindControl("hyperOrderID");
HappyCallManager objHappyCallManager = new HappyCallManager();
objHappyCallManager.HappyCallAllocated(Convert.ToInt64(lblOrderID.Text), objWebuser.ShortAbbr, ddlAllocateTo.SelectedValue);
//Update database with person details thats are assigned to the Welcome Call
}
}
}
}
when it goes on to the Foreach gridviewrow etc the count is 1 even though there is 4 rows displaying information ?
Can any one shed any light on this? or even better a solution?
Thank you for your time.
UPdate
<ajaxToolkit:TabPanel ID="tbHappyCall" runat="server" HeaderText="Welcome Calls" TabIndex="10">
<ContentTemplate>
<%--OnRowDataBound="gvConfirmOrder_rowDataBound"--%>
<div id="divHappyCall">
<asp:GridView ID="gvHappyCall" runat="server" AutoGenerateColumns="false" class="tablesorter"
EmptyDataText="There is no Record to display." DataKeyNames="OrderID" EnableViewState="false"
OnRowDataBound="gvHappyCall_RowDataBound">
<AlternatingRowStyle CssClass="NormalTextVNC" BackColor="#E2E9E7"></AlternatingRowStyle>
<Columns>
<asp:TemplateField HeaderText="Account Manager">
<ItemTemplate>
<asp:Label ID="lblAccountManager" CssClass="gvItem" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.AccountManager") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="OrderID">
<ItemTemplate>
<asp:HyperLink ID="hyperOrderID" runat="server" ForeColor="White" NavigateUrl='<%#Eval("OrderGuid","/Documents/HappyCall.aspx?OrderID={0}") %>'
Text='<%#Eval("OrderID") %>'></asp:HyperLink>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Customer Name">
<ItemTemplate>
<asp:Label ID="lblCustomerName" CssClass="gvItem" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.CustomerName") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Company Name">
<ItemTemplate>
<asp:Label ID="lblCompanyName" CssClass="gvItem" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.CompanyName") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Mobile Number">
<ItemTemplate>
<asp:Label ID="lblMobileNumber" CssClass="gvItem" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.MobileNumber") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Dispatch Date">
<ItemTemplate>
<asp:Label ID="lblConnectionDate" CssClass="gvItem" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.DespatchDate") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Status">
<ItemTemplate>
<asp:Label ID="lblStatus" CssClass="gvItem" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.Status") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField headertext="Date Called" dataformatstring="{0:dd/MM/yyyy}" datafield="EditedDate" HeaderStyle-Width="100px" />
<asp:TemplateField HeaderText="Allocated To">
<ItemTemplate>
<asp:Label ID="lblAllocatedTo" CssClass="gvItem" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.AllocatedTo") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<%--<asp:TemplateField HeaderText="Last Action">
<ItemTemplate>
<asp:Label ID="lblLAstAction" CssClass="gvItem" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.LastAction") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>--%>
<asp:TemplateField HeaderText="Check">
<ItemTemplate>
<asp:CheckBox runat="server" ID="chkAssignWelcomeCall" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
<asp:DropDownList runat="server" ID="ddlAllocateTo" CssClass="floatright">
<asp:ListItem>Name of Admin to Allocate</asp:ListItem>
</asp:DropDownList>
<div class="WhiteSpace"></div>
<asp:Button runat="server" ID="btnAllocate" class="floatright" Text="Allocate" OnClick="btnAllocate_click" />
</div>
</ContentTemplate>
</ajaxToolkit:TabPanel>
For clarification: you don't need to iterate the control collection of your TabPanel to find your GridView, it is available directly and don't confuse it's Controls.Count with the number of GridView.Rows.Count.
Is ViewState disabled somewhere?
Edit: I see that the GridView's ViewState is disabled. I assume that it works when you enable it.
I have problem dealing with EditItemTemplate.
What I am trying to do is to update my TextBox txt_name but I can't get what the user ingresses And I get the old value instead at the code-behind.
Am I missing something?
FRONT CODE
<asp:GridView ID="GridView_account" runat="server" AutoGenerateColumns="false" ShowFooter="True"
OnRowCancelingEdit="GridView_account_RowCancelingEdit" OnRowEditing="GridView_account_RowEditing"
OnRowUpdating="GridView_account_RowUpdating" OnRowCommand="GridView_account_RowCommand"
OnRowDeleting="GridView_account_RowDeleting" OnSelectedIndexChanged="GridView_account_SelectedIndexChanged"
DataKeyNames="UID" Height="110px" Width="497px">
<Columns>
<asp:TemplateField HeaderText="UID" SortExpression="UID">
<ItemTemplate>
<asp:Label ID="label_accid" runat="server" Text='<%# Bind("UID") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="User Name (required)" SortExpression="NyA">
<EditItemTemplate>
<asp:TextBox ID="txt_name" runat="server" Text='<%# Bind("NyA") %>'/>
</EditItemTemplate>
<FooterTemplate>
<asp:TextBox ID="txt_newname" runat="server"></asp:TextBox>
</FooterTemplate>
<ItemTemplate>
<asp:Label ID="label_name" runat="server" Text='<%# Bind("NyA") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Email Address (required)" SortExpression="eMail">
<EditItemTemplate>
<asp:TextBox ID="txt_email" runat="server" Text='<%# Bind("eMail") %>'></asp:TextBox>
</EditItemTemplate>
<FooterTemplate>
<asp:TextBox ID="txt_newemail" runat="server"></asp:TextBox>
</FooterTemplate>
<ItemTemplate>
<asp:Label ID="label_email" runat="server" Text='<%# Bind("eMail") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Options" ShowHeader="False">
<EditItemTemplate>
<asp:LinkButton ID="LinkButton_update" runat="server" CausesValidation="True" CommandName="Update"
Text="Update"></asp:LinkButton>
<asp:LinkButton ID="LinkButton_cancel" runat="server" CausesValidation="False" CommandName="Cancel"
Text="Cancel"></asp:LinkButton>
<asp:LinkButton ID="LinkButton_delete" runat="server" CausesValidation="False" CommandName="Delete"
Text="Delete"></asp:LinkButton>
</EditItemTemplate>
<FooterTemplate>
<asp:LinkButton ID="LinkButton_addnew" runat="server" CausesValidation="False" CommandName="AddNew"
Text="Add New"></asp:LinkButton>
</FooterTemplate>
<ItemTemplate>
<asp:LinkButton ID="LinkButton_edit" runat="server" CausesValidation="False" CommandName="Edit"
Text="Edit"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Manage Role" ShowHeader="False">
<ItemTemplate>
<asp:LinkButton ID="Selectbtn" runat="server" CausesValidation="False" CommandName="Select"
Text="Select"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
CODE BEHIND
protected void GridView_account_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
user u = Business.GetUser(((Label)GridView_account.Rows[e.RowIndex].FindControl("label_accid")).Text);
//HERE'S MY PROBLEM!
u.fullname = ((TextBox)GridView_account.Rows[e.RowIndex].FindControl("txt_name")).Text;
//txt_name is returning the old value and not the one the user has input recently.
Business.UpdateUser(u);
GridView_account.EditIndex = -1;
fillgridview();
}//
Are you checking if Page IsPostback when binding your grid? You need to not rebind it in the Page_Load if it is a post back, or else you will lose the new values, because the Page Init, Page Load events happen before other events, such as a Grid Updating event.
May be you are binding you grid on every page_load event. If so, you need something like this:
protected void Page_Load(object sender, EventArgs e)
{
if(!Page.IsPostBack)
{
GridView_account.DataSource = "data source";
GridView_account.DataBind();
}
}
or instead of
if(!Page.IsPostBack)
you can use
if (GridView_account.EditIndex == -1)
this checks, if grid is in edit mode. If grid is not in edit mode, you can bind your grid with data source.