This is my grid
<asp:GridView ID="gridProduct" runat="server"
AutoGenerateColumns="false"
ShowFooter="true"
onrowcancelingedit="gridProduct_RowCancelingEdit"
onrowdeleting="gridProduct_RowDeleting" onrowediting="gridProduct_RowEditing"
onrowupdating="gridProduct_RowUpdating"
onrowcommand="gridProduct_RowCommand"
onrowdatabound="gridProduct_RowDataBound">
<Columns>
<asp:TemplateField>
<EditItemTemplate>
<asp:Button ID="buttonUpdate" CommandName="Update" runat="server" ToolTip="Update" Text="Update" />
<asp:Button ID="buttonCancel" CommandName="Cancel" runat="server" ToolTip="Cancel" Text="Cancel" />
</EditItemTemplate>
<ItemTemplate>
<asp:Button ID="buttonEdit" CommandName="Edit" runat="server" Text="Edit" ToolTip="Edit"/>
<asp:Button ID="buttonDelete" CommandName="Delete" runat="server" Text="Delete" ToolTip="Delete"/>
</ItemTemplate>
<FooterTemplate>
<asp:Button ID="buttonAdd" runat="server" Text="Ajouter" CommandName="AddNew" ToolTip="Add new User" ValidationGroup="validaiton" />
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="#Piece">
<EditItemTemplate>
<asp:Label ID="labelEditPiece" runat="server" Text='<%#Eval("Piece") %>'/>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="labelItemPiece" runat="server" Text='<%#Eval("Piece") %>'/>
</ItemTemplate>
<FooterTemplate>
<asp:DropDownList ID="dropDownListPartsFooter" runat="server" DataTextField="Nom" DataValueField="ID_AchatTemplate">
</asp:DropDownList>
ControlToValidate="txtBoxPiece" Text="*" ValidationGroup="validaiton"/>--%>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Series">
<EditItemTemplate>
<asp:Label ID="labelEditSeries" runat="server" Text='<%#Eval("Series") %>'/>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="labelItemSeries" runat="server" Text='<%#Eval("Series") %>'/>
</ItemTemplate>
<FooterTemplate>
<asp:TextBox ID="txtBoxSeries" runat="server"/>
<asp:RequiredFieldValidator ID="fieldValidSeries" runat="server" ControlToValidate="txtBoxSeries" Text="*" ValidationGroup="validaiton"/>
</FooterTemplate>
.... </asp:TemplateField>
</Columns>
This is my page load
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
PsaDataSet psaList = new PsaDataSet();
ViewState.Remove("psaList");
ViewState.Add("psaList", psaList);
ViewState.Add("psaUid", Guid.NewGuid());
if (psaList.PsaLink.DefaultView.Count == 0)
{
// Patch for view footer row when no data
PsaDataSet.PsaLinkDataTable tmpList = new PsaDataSet.PsaLinkDataTable();
PsaDataSet.PsaLinkRow tmpItem = tmpList.NewPsaLinkRow();
tmpItem.PsaUid = (Guid)ViewState["psaUid"];
tmpItem.PsaProductUid = Guid.Empty;
tmpItem.ProductId = 1;
tmpItem.Series = "test";
tmpItem.Rev = "test";
tmpItem.Firmware = "test";
tmpList.AddPsaLinkRow(tmpItem);
tmpList.AcceptChanges();
ViewState.Add("series", tmpItem.Series);
gridProduct.DataSource = tmpList;
gridProduct.DataBind();
}
}
else
{
//BindGrid((PsaDataSet)ViewState["psaList"], false);
}
}
private void BindGrid(PsaDataSet psaList, bool mustDataBind)
{
gridProduct.DataSource = psaList.PsaLink;
//if (mustDataBind)
//{
gridProduct.DataBind();
//}
}
This my onrowdatabound="gridProduct_RowDataBound"> method
protected void gridProduct_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
e.Row.Attributes["style"] = "display:none";
}
}
}
I want to add a condition (Based whit a test value inserted in page load) in the if(protected void gridProduct_RowDataBound method) for hiding just one time on page load??
Thank Frank!
I belive you can get the DataBoundItem from the row which is a type of "PsaDataSet.PsaLinkRow" and use that you get the ProductId, Series, etc. and do the condition that you require. Also, you have and if condition inside an if condition with the same condition for both. You only need one.
Related
I am new to using Viewstate in asp Web forms. I have a description drop down menu that I use to show a Gridview.
However, when I click on the edit row button, the Gridview clears all data. From this:
to this:
My code is:
public partial class Default : System.Web.UI.Page
{
private List<PRAssembly> assemblyPR = null;
......
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
SBOConnection.Connect();
if (Request.QueryString["message"] == "success")
AlertSuccess.Visible = true;
}
}
private void bindPRGridView()
{
// Create Data Table
DataTable dt = new DataTable();
dt.Columns.Add("LineNum", typeof(int));
dt.Columns.Add("ItemCode", typeof(string));
dt.Columns.Add("ItemDescription", typeof(string));
dt.Columns.Add("Quantity", typeof(int));
if (assemblyPR != null)
{
foreach (var item in assemblyPR)
{
dt.Rows.Add(item.LineNum, item.ItemCode, item.ItemDesc, item.Quantity);
}
pRGridView.DataSource = dt;
pRGridView.DataBind();
if (pRGridView.Rows.Count > 0)
{
pRGridView.UseAccessibleHeader = true;
pRGridView.HeaderRow.TableSection = TableRowSection.TableHeader;
}
pRGridView.Columns[4].Visible = true;
}
else
{
dt.Rows.Add(dt.NewRow());
pRGridView.DataSource = dt;
pRGridView.DataBind();
pRGridView.Columns[4].Visible = false;
foreach (GridViewRow row in pRGridView.Rows)
{
if (row.RowType == DataControlRowType.DataRow)
{
LinkButton lb = ((LinkButton)row.FindControl("lnkRemove"));
lb.Visible = false;
}
}
}
}
protected void AddRowPurchaseRequisition(object sender, EventArgs e)
{
string itemCode = ((DropDownList)pRGridView.FooterRow.FindControl("ddlItemCode")).SelectedValue;
string itemDesc = ((DropDownList)pRGridView.FooterRow.FindControl("ddlItemDescription")).SelectedValue;
int quantity = Int32.Parse(((TextBox)pRGridView.FooterRow.FindControl("txtQuantity")).Text);
assemblyPR = ViewState["PRList"] as List<PRAssembly>;
if (assemblyPR == null)
{
assemblyPR = new List<PRAssembly>();
ViewState["PRList"] = assemblyPR;
}
// Transform data to PRAssembly Class object
assemblyPR.Add(new PRAssembly
{
ItemCode = itemCode,
ItemDesc = itemDesc,
Quantity = quantity
});
// Rebind Grid view
bindPRGridView();
}
protected void pRGridView_RowEditing(object sender, GridViewEditEventArgs e)
{
pRGridView.EditIndex = e.NewEditIndex;
bindPRGridView();
}
After the edit button click, I notice that assemblyPR is null when it comes to rebinding the gridview. How do I allow editing without losing the data?
Below is some Gridview markup
<asp:GridView ID="pRGridView"
runat="server"
AutoGenerateColumns="False"
AllowPaging="True"
AllowSorting="True"
ShowFooter="True"
OnRowEditing="pRGridView_RowEditing"
OnRowUpdating="pRGridView_RowUpdating"
OnPageIndexChanging="pRGridView_PageIndexChanging"
OnRowCancelingEdit="pRGridView_RowCancelingEdit"
PagerStyle-CssClass="bs-pagination"
ShowHeaderWhenEmpty="True"
EmptyDataText="No Records Found"
CssClass="table table-striped table-bordered table-hover table-condensed">
<Columns>
<asp:TemplateField ItemStyle-Width="30px" HeaderText="#">
<ItemTemplate>
<%# Container.DataItemIndex + 1 %>
</ItemTemplate>
<%-- <FooterTemplate>
<%# pRGridView.Rows.Count %>
</FooterTemplate>--%>
</asp:TemplateField>
<asp:TemplateField ItemStyle-Width="120px" HeaderText="Item No.">
<ItemTemplate>
<asp:Label ID="lblItemCode" runat="server"
Text='<%# Bind("ItemCode")%>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:DropDownList ID="ddlItemCode" runat="server"
AutoPostBack="True"
SelectMethod="GetItemCodes"
AppendDataBoundItems="True"
OnSelectedIndexChanged="ddlItemCode_SelectedIndexChanged"
Width="120px"
DataTextField="Value" DataValueField="Key">
<asp:ListItem Value="-1" Text="Select"></asp:ListItem>
</asp:DropDownList>
<asp:RequiredFieldValidator runat="server" ControlToValidate="ddlItemCode" Display="Dynamic" ValidationGroup="Edit"
CssClass="text-danger" ErrorMessage="The Item Code field is required." />
</EditItemTemplate>
<FooterTemplate>
<asp:DropDownList ID="ddlItemCode" runat="server"
AutoPostBack="True"
SelectMethod="GetItemCodes"
AppendDataBoundItems="True"
OnSelectedIndexChanged="ddlItemCode_SelectedIndexChanged"
Width="120px"
DataTextField="Value" DataValueField="Key">
<asp:ListItem Value="-1" Text="Select"></asp:ListItem>
</asp:DropDownList>
<asp:RequiredFieldValidator runat="server" ControlToValidate="ddlItemCode" Display="Dynamic" ValidationGroup="Insert"
CssClass="text-danger" InitialValue="-1" ErrorMessage="The Item Code field is required." />
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField ItemStyle-Width="400px" HeaderText="Item Description">
<ItemTemplate>
<asp:Label ID="lblItemDescription" runat="server" Width="120px"
Text='<%# Bind("ItemDescription")%>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:DropDownList ID="ddlItemDescription" runat="server"
AutoPostBack="True"
SelectMethod="GetItemDescriptions"
AppendDataBoundItems="True"
OnSelectedIndexChanged="ddlItemDescription_SelectedIndexChanged"
Width="400px"
DataTextField="Value" DataValueField="Value">
<asp:ListItem Value="-1" Text="Select"></asp:ListItem>
</asp:DropDownList>
<asp:RequiredFieldValidator runat="server" ControlToValidate="ddlItemDescription" Display="Dynamic" ValidationGroup="Edit"
CssClass="text-danger" ErrorMessage="The Item Description field is required." />
</EditItemTemplate>
<FooterTemplate>
<asp:DropDownList ID="ddlItemDescription" runat="server"
AutoPostBack="True"
SelectMethod="GetItemDescriptions"
AppendDataBoundItems="True"
OnSelectedIndexChanged="ddlItemDescription_SelectedIndexChanged"
Width="400px"
DataTextField="Value" DataValueField="Value">
<asp:ListItem Value="-1" Text="Select"></asp:ListItem>
</asp:DropDownList>
<asp:RequiredFieldValidator runat="server" ControlToValidate="ddlItemDescription" Display="Dynamic" ValidationGroup="Insert"
CssClass="text-danger" InitialValue="-1" ErrorMessage="The Item Description field is required." />
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField ItemStyle-Width="120px" HeaderText="Required Qty.">
<ItemTemplate>
<asp:Label ID="lblAmount" runat="server"
Text='<%# Bind("Quantity")%>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txtQuantity" runat="server" Width="100px"
Text='<%# Bind("Quantity")%>'></asp:TextBox>
<asp:RequiredFieldValidator runat="server" ControlToValidate="txtQuantity" Display="Dynamic" ValidationGroup="Edit"
CssClass="text-danger" ErrorMessage="The Quantity field is required." />
<asp:RegularExpressionValidator ControlToValidate="txtQuantity" runat="server" CssClass="text-danger" Display="Dynamic"
ErrorMessage="Only numbers allowed." ValidationExpression="^[0-9]{0,6}(\.[0-9]{1,2})?$"
ValidationGroup="Edit"></asp:RegularExpressionValidator>
</EditItemTemplate>
<FooterTemplate>
<asp:TextBox ID="txtQuantity" runat="server" Width="100px"></asp:TextBox>
<asp:RequiredFieldValidator runat="server" ControlToValidate="txtQuantity" Display="Dynamic" ValidationGroup="Insert"
CssClass="text-danger" ErrorMessage="The Quantity field is required." />
<asp:RegularExpressionValidator ControlToValidate="txtQuantity" runat="server" CssClass="text-danger" Display="Dynamic"
ErrorMessage="Only numbers allowed." ValidationExpression="^[0-9]{0,6}(\.[0-9]{1,2})?$"
ValidationGroup="Insert"></asp:RegularExpressionValidator>
</FooterTemplate>
</asp:TemplateField>
<asp:CommandField ShowEditButton="True" ValidationGroup="Edit" />
<asp:TemplateField>
<ItemTemplate>
<asp:LinkButton ID="lnkRemove" runat="server"
CommandArgument='<%# Bind("LineNum")%>'
OnClientClick="return confirm('Are you sure you want to delete this row?')"
Text="Delete" OnClick="DeleteRowPurchaseRequisition"></asp:LinkButton>
</ItemTemplate>
<FooterTemplate>
<asp:Button ID="btnAdd" runat="server" Text="Add" ValidationGroup="Insert" CssClass="btn btn-primary btn-sm"
OnClick="AddRowPurchaseRequisition" />
</FooterTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="pRGridView" />
</Triggers>
Upon editing, assemblyPR is null because you're not assigning a value to it prior to calling bindPRGridView(). One way to fix it is by adding a line to pRGridView_RowEditing:
protected void pRGridView_RowEditing(object sender, GridViewEditEventArgs e)
{
pRGridView.EditIndex = e.NewEditIndex;
assemblyPR = ViewState["PRList"] as List<PRAssembly>;
bindPRGridView();
}
This is the code where I have problem, I don't have any problems in the previous page but this is happening in this and following page.
<asp:GridView ID="gv_employee" runat="server" ShowHeaderWhenEmpty="true" AutoGenerateColumns="false" OnRowEditing="Edit" OnRowCancelingEdit="CancelEdit" OnRowUpdating="Update" Width="1070px"
AlternatingRowStyle-BackColor="WhiteSmoke" HeaderStyle-BackColor="#C5D9F1">
<Columns>
<asp:TemplateField HeaderText="S.No" ItemStyle-HorizontalAlign="Center" ItemStyle-Width="60px">
<ItemTemplate>
<%#Container.DataItemIndex+1 %>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Employee Code" ItemStyle-Width="160px">
<ItemTemplate>
<asp:Label ID="lbl_gv_empcode" runat="server" Text='<%#Eval("employeecode")%>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Employee Name">
<ItemTemplate>
<asp:Label ID="lbl_gv_empname" runat="server" Text='<%#Eval("employeename") %>' />
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txt_gv_empname" runat="server" Text='<%#Eval("employeename") %>' />
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Address1">
<ItemTemplate>
<asp:Label ID="lbl_gv_addr1" runat="server" Text='<%#Eval("address1") %>' />
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txt_gv_addr1" runat="server" Text='<%#Eval("address1") %>' />
</EditItemTemplate>
</asp:TemplateField>
<%-- <asp:TemplateField HeaderText="Address2">
<ItemTemplate>
<asp:Label ID="lbl_gv_addr2" runat="server" Text='<%#Eval("address2") %>' />
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txt_gv_addr2" runat="server" Text='<%#Eval("address2") %>' />
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Address3">
<ItemTemplate>
<asp:Label ID="lbl_gv_addr3" runat="server" Text='<%#Eval("address3") %>' />
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txt_gv_addr3" runat="server" Text='<%#Eval("address3") %>' />
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="City">
<ItemTemplate>
<asp:Label ID="lbl_gv_city" runat="server" Text='<%#Eval("city")%>' />
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txt_gv_city" runat="server" Text='<%#Eval("city")%>' />
</EditItemTemplate>
</asp:TemplateField>--%>
<asp:TemplateField HeaderText="Email">
<ItemTemplate>
<asp:Label ID="lbl_gv_email" runat="server" Text='<%#Eval("email") %>' />
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txt_gv_email" runat="server" Text='<%#Eval("email") %>' />
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Phone">
<ItemTemplate>
<asp:Label ID="lbl_gv_phone" runat="server" Text='<%#Eval("phone") %>' />
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txt_gv_phone" runat="server" Text='<%#Eval("phone") %>' />
</EditItemTemplate>
</asp:TemplateField>
<asp:CommandField ShowEditButton="true" />
<asp:TemplateField>
<ItemTemplate>
<asp:LinkButton ID="btndel" runat="server" Text="Delete" CommandArgument='<%#Eval("employeecode") %>'
OnClientClick="return confirm('Do you want to delete?')" OnClick="Delete" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
This is my asp code
public void BindData()
{
string ls_sqlcmd = "select * from employeemst";
SqlCommand cmd = new SqlCommand(ls_sqlcmd);
gv_employee.DataSource = add.GetData(cmd);
gv_employee.DataBind();
}
protected void Delete(object sender, EventArgs e)
{
LinkButton lnk_deletestate = (LinkButton)sender;
string str = "delete from employeemst where employeecode='" + lnk_deletestate.CommandArgument + "'";
add.adddata(str);
BindData();
}
protected void Update(object sender, GridViewUpdateEventArgs e)
{
String emplname = ((TextBox)gv_employee.Rows[e.RowIndex].FindControl("txt_gv_empname")).Text;
String Addr1= ((TextBox)gv_employee.Rows[e.RowIndex].FindControl("txt_gv_addr1")).Text;
String addr2 = ((TextBox)gv_employee.Rows[e.RowIndex].FindControl("txt_gv_addr2")).Text;
String addr3 = ((TextBox)gv_employee.Rows[e.RowIndex].FindControl("txt_gv_addr3")).Text;
gv_employee.EditIndex = -1;
BindData();
}
protected void Edit(object sender, GridViewEditEventArgs e)
{
gv_employee.EditIndex = e.NewEditIndex;
BindData();
}
protected void CancelEdit(object sender, GridViewCancelEditEventArgs e)
{
gv_employee.EditIndex = -1;
BindData();
}
}
This is my aspx.cs code.
My problem is that I am unable to get data from textbox which is in gridview <EditItemTemplate></EditItemTemplate>
I don't get updated value in string emplname, addr1, addr2,addr3.
your issue is you are binding grid view in each postback, move your BindData method inside the IsPostBack check, then you can get the data
protected void Page_Load(object sender, EventArgs e)
{
Session["page"] = "Employee";
if (!IsPostBack)
{
BindData();
DataTable dt = add.retrive("select * from statemst");
for (int i = 0; i < dt.Rows.Count; i++)
{
ListItem item = new ListItem();
item.Text = dt.Rows[i]["statedesc"].ToString();
item.Value = dt.Rows[i]["statecode"].ToString();
ddl_state.Items.Add(item);
}
}
}
I have a grid view with two footer text boxex,
<asp:GridView ID="grdmaster" runat="server" AutoGenerateColumns="false" ShowFooter="true" DataKeyNames="ID">
<Columns>
<asp:TemplateField HeaderText="Description">
<ItemTemplate>
<asp:TextBox ID="txtdescription" runat="server" > </asp:TextBox>
</ItemTemplate>
<FooterTemplate>
<asp:Label ID="lbltotal" Font-Bold="true" runat="server" Text="Total" > </asp:Label>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Debit">
<ItemTemplate>
<asp:TextBox ID="txtdebit" runat="server" AutoPostBack="true" OnTextChanged="txtdebit_TextChanged"> </asp:TextBox>
</ItemTemplate>
<FooterTemplate>
<asp:TextBox ID="txtdebit1" Font-Bold="true" runat="server" ></asp:TextBox>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Credit">
<ItemTemplate>
<asp:TextBox ID="txtcredit" runat="server" AutoPostBack="true" OnTextChanged="txtcredit_TextChanged"> </asp:TextBox>
</ItemTemplate>
<FooterTemplate>
<asp:TextBox ID="txtcredit2" Font-Bold="true" runat="server"></asp:Text>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:LinkButton ID="btndelete" runat="server" class="btn red icn-only" OnClick="btndelete_Click"><i class="icon-remove icon-white"></i> </asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
here I want to compare the footer Textebox txtdebit1 and txtcredit2 values are same or not.How can I set compare validator for.I followed some methods from google but got error message like Compare validator could not find control to validate text box.Is it possible to set compare validator for footer table text box?
Please try below,
protected void grdmaster_ItemDataBound(object sender, GridItemEventArgs e)
{
if (e.Item is GridFooterItem)
{
GridDataItem item = (GridDataItem)e.Item;
TextBox txtdebit1 = item.FindControl("txtdebit1") as TextBox;
TextBox txtcredit2 = item.FindControl("txtcredit2") as TextBox;
TableCell cell = (TableCell)txtdebit1.Parent;
CompareValidator val = new CompareValidator();
val.ControlToCompare = txtcredit2.ID;
val.ControlToValidate = txtdebit1.ID;
val.Operator = ValidationCompareOperator.LessThan;
val.Display = ValidatorDisplay.Dynamic;
val.ErrorMessage = "Error message";
cell.Controls.Add(val);
}
}
I've started creating an online quiz. I am using a DetailsView linked to a sqlDataSource.
Here's my code:
<asp:DetailsView ID="QuestionDetails" runat="server" AutoGenerateRows="False" DataKeyNames="QuestionID,QuizID" DataSourceID="SqlDataSource_Quiz">
<Fields>
<asp:TemplateField HeaderText="Text_Eng" SortExpression="Text_Eng" ShowHeader="False">
<EditItemTemplate>
<asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("Text_Eng") %>'></asp:TextBox>
</EditItemTemplate>
<InsertItemTemplate>
<asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("Text_Eng") %>'></asp:TextBox>
</InsertItemTemplate>
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Bind("Text_Eng") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField ShowHeader="False">
<ItemTemplate>
<asp:RadioButton ID="Option1" AccessKey="1" runat="server" Text='<%# Bind("Opt_1") %>' GroupName="AnswerOptions" AutoPostBack="true" OnCheckedChanged="Option_CheckedChanged" />
<br />
<asp:RadioButton ID="Option2" AccessKey="2" runat="server" Text='<%# Bind("Opt_2") %>' GroupName="AnswerOptions" AutoPostBack="true" OnCheckedChanged="Option_CheckedChanged"/>
<br />
<asp:RadioButton ID="Option3" AccessKey="3" runat="server" Text='<%# Bind("Opt_3") %>' GroupName="AnswerOptions" AutoPostBack="true" OnCheckedChanged="Option_CheckedChanged"/>
<br />
</ItemTemplate>
</asp:TemplateField>
</Fields>
</asp:DetailsView>
Note that i am not displaying all data retrieved from the sqlDataSource (there are other fields/columns as well) in the DetailsView.
Now, in my code behind, i am showing the next record by changing the PageIndex of the DetailsView upon clicking a button (NextButton) but at the same time, i need to retrieve some data of the currently displayed record so I've put the following in the button's click handler:
protected void NextButton_Click(object sender, EventArgs e)
{
try
{
// Save off previous answers
DataRowView dr = (DataRowView)QuestionDetails.DataItem;
// Create Answer object to save values
Answer a = new Answer();
a.QuestionID = dr["QuestionID"].ToString();
a.CorrectAnswer = dr["CorrectAnswer"].ToString();
a.UserAnswer = selectedOptionRB.AccessKey.ToString();
ArrayList al = (ArrayList)Session["userAnswers"];
al.Add(a);
Session.Add("userAnswers", al);
}
catch (Exception ex)
{
Label2.Text = "Exception!";
}
if (QuestionDetails.PageIndex == QuestionDetails.PageCount - 1)
{
NextButton.Enabled = false;
}
else
{
QuestionDetails.PageIndex += 1;
NextButton.Enabled = false;
}
if (QuestionDetails.PageIndex == QuestionDetails.PageCount - 1)
{
NextButton.Text = "Finish the Quiz";
}
}
So when i run the code, i get "Exception!" displayed in my Label2 which i setup for testing.
What am i doing wrong?
I just attached linq data to gridview it is not showing row ?
DataDataContext db = new DataDataContext();
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
BindData();
}
private void BindData()
{
var source = from n in db.Names
select n;
gridSample.DataSource = source.ToList<Name>();
gridSample.DataBind();'
}
<asp:UpdatePanel ID="panelGrid" runat="server">
<ContentTemplate>
<asp:GridView runat="server" ID="gridSample" AutoGenerateColumns="false">
<Columns>
<asp:TemplateField HeaderText="First Name">
<EditItemTemplate>
<asp:TextBox ID="txtFirstName" runat="server" Text='<%Bind("FirstName") %>' />
</EditItemTemplate>
<ItemTemplate>
<asp:Label runat="server" ID="lblFirstName" Text='<%Eval("FirstName") %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Last Name">
<EditItemTemplate>
<asp:TextBox ID="txtLastName" runat="server" Text='<%Bind("LastName") %>' />
</EditItemTemplate>
<ItemTemplate>
<asp:Label runat="server" ID="lblLastName" Text='<%Eval("LastName") %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Date of Birth">
<EditItemTemplate>
<asp:TextBox ID="txtDOB" runat="server" Text='<%Bind("DOB") %>' />
</EditItemTemplate>
<ItemTemplate>
<asp:Label runat="server" ID="lblDOB" Text='<%Eval("DOB") %>' />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
Try this
List<Name> source = (from n in db.Names select n).ToList();
gridSample.DataSource = source;
gridSample.DataBind();'
<asp:TextBox ID="txtFirstName" runat="server" Text='<%# Bind("FirstName") %>' />
try this:
private void BindData()
{
var source = from n in db.Names
select n;
gridSample.DataSource = source;
gridSample.DataBind();'
}
Regards
Set the property
AutoPostBack = True
for the GridView. Since it is inside the UpdatePanel.