Hi,
I have a GridView that has one column that I fill with an alternating "Title
Row" then "Details Row". The Title row has a button that I use to hide it's
corresponding details row that is underneath it for users to collapse detail
rows leaving the title row visible. The button can be clicked again to show
the details.
This used to work great using a DataGrid but when I upgraded it to a
GridView I experience the following problem:
When clicking the button it hides the details row as expected but when
clicking other buttons, the previously hidden details row show. They do not
retain their hidden attributes.
Can someone help me with this? THANKS!
Here's the code:
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb"
Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView1" runat="server"
AutoGenerateColumns="False" ShowHeader="false"
OnRowCommand="GridView1_RowCommand" Width="100%"
EnableViewState="true">
<Columns>
<asp:ButtonField ButtonType="Button"
CommandName="btnCollapse" Text="-">
<ControlStyle Font-Size="XX-Small" Height="18px"
Width="18px" />
<ItemStyle VerticalAlign="Top" />
</asp:ButtonField>
<asp:BoundField DataField="Logs" HtmlEncode="False">
<ItemStyle VerticalAlign="Top" Wrap="True" />
</asp:BoundField>
</Columns>
<EmptyDataRowStyle Height="40px" />
<HeaderStyle BackColor="Gainsboro" />
<AlternatingRowStyle BackColor="Transparent" />
<RowStyle BackColor="Gainsboro" />
</asp:GridView>
</div>
</form>
</body>
</html>
Partial Class _Default
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As
System.EventArgs) Handles Me.Load
Call FillGridView()
End Sub
Private Sub FillGridView()
Dim j As Short
Dim dt As New DataTable
dt.Columns.Add("Logs", GetType(System.String))
For j = 1 To 5
Dim dr1 As DataRow = dt.NewRow
dr1(0) = "Title " & j.ToString
dt.Rows.Add(dr1)
Dim dr2 As DataRow = dt.NewRow
dr2(0) = "Details here ..."
dt.Rows.Add(dr2)
Next
Me.GridView1.DataSource = dt
Me.GridView1.DataBind()
Call CleanUpButtons(Me.GridView1)
End Sub
Private Sub CleanUpButtons(ByVal gv As GridView)
Dim j As Integer
Try
For j = 1 To gv.Rows.Count Step 2
gv.Rows(j).Cells(0).Controls(0).Visible = False
Next
Catch ex As System.Exception
j = 0
End Try
End Sub
Sub GridView1_RowCommand(ByVal sender As Object, ByVal e As
GridViewCommandEventArgs)
Dim i As Integer = Convert.ToInt32(e.CommandArgument)
Dim iSelectedRow As GridViewRow = Me.GridView1.Rows(i)
Dim iDetailsRow As GridViewRow = Me.GridView1.Rows(i + 1)
Dim btn As Button = iSelectedRow.Cells(0).Controls(0)
If btn.Text = "-" Then
iDetailsRow.Visible = False
btn.Text = "+"
Else
iDetailsRow.Visible = True
btn.Text = "-"
End If
End Sub
End Class
<?xml version="1.0"?>
<configuration>
<appSettings/>
<connectionStrings/>
<system.web>
<compilation debug="true" strict="false" explicit="true"/>
<pages>
<namespaces>
<clear/>
<add namespace="System"/>
<add namespace="System.Collections"/>
<add namespace="System.Collections.Specialized"/>
<add namespace="System.Configuration"/>
<add namespace="System.Text"/>
<add namespace="System.Text.RegularExpressions"/>
<add namespace="System.Web"/>
<add namespace="System.Web.Caching"/>
<add namespace="System.Web.SessionState"/>
<add namespace="System.Web.Security"/>
<add namespace="System.Web.Profile"/>
<add namespace="System.Web.UI"/>
<add namespace="System.Web.UI.WebControls"/>
<add namespace="System.Web.UI.WebControls.WebParts"/>
<add namespace="System.Web.UI.HtmlControls"/>
<add namespace="System.Data"/>
</namespaces>
</pages>
<authentication mode="Windows"/>
</system.web>
</configuration>
