User646364117 posted
When a button is clicked in a gridview row, in the GridView RowCommand the repeater is bound.
When I am debugging in the Repeater ItemDataBound, after the button was clicked the variable 'blocktype' is empty which is causing my problem
Here is my Markup. I have omitted some irrelevant columns
<asp:Repeater ID="rptBlock_Tab2" runat="server" >
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text="Block: " Style="font-weight: bold; color: white; background-color: #3366ff;" />
<asp:Label ID="lblBlockName" runat="server" Text='<%# Eval("blockname") %>' Style="font-weight: bold; color: white; background-color: #3366ff; padding-left: 3px; padding-right: 3px;" />
<asp:Label ID="lblBlockType" runat="server" Text='<%# Eval("blocktype") %>'></asp:Label>
<asp:HiddenField ID="hfBlockID" runat="server" Value='<%# Eval("id") %>'></asp:HiddenField>
<asp:GridView ID="gvContent2"
AutoGenerateColumns="false"
runat="server"
OnRowCommand="gvContent2_RowCommand" OnRowDataBound="gvContent2_RowDataBound" ShowFooter="False" >
<Columns>
<asp:TemplateField HeaderText="Short Text" HeaderStyle-Width="300px">
<ItemTemplate>
<asp:Label ID="lbl_shorttext" runat="server" Text='<%#Eval("shorttext") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
<asp:Button ID="btnUse" runat="server" Text="Use" />
</ItemTemplate>
</asp:Repeater>
Here is the gridview rowCommand
The repeater is bound toward the end, indicated in bold
Protected Sub gvContent2_RowCommand(sender As Object, e As GridViewCommandEventArgs)
'For Tab 2
Dim gv As GridView = CType(sender, GridView)
If e.CommandName = "PopulatePlaceholders" Then
Dim row As GridViewRow = CType(((CType(e.CommandSource, Control)).NamingContainer), GridViewRow)
Dim inputText As String = ftb1.Text
'Add spaces so split won't fail
inputText = " " & inputText & " "
Dim outputText As String = ""
Dim textArray() As String
Dim hfBlockName As HiddenField = TryCast(row.FindControl("hfBlockName"), HiddenField)
Dim blockName As String = hfBlockName.Value.ToString()
Dim hfBlockType As HiddenField = TryCast(row.FindControl("hfBlockType"), HiddenField)
Dim blockType As String = hfBlockType.Value.ToString()
Dim lbl_shorttext As Label = TryCast(row.FindControl("lbl_shorttext"), Label)
Dim shortText As String = lbl_shorttext.Text.ToString()
Dim lbl_longtext As Label = TryCast(row.FindControl("lbl_longtext"), Label)
Dim longText As String = lbl_longtext.Text.ToString()
Dim chkIncluded As CheckBox = TryCast(row.FindControl("chkIncluded"), CheckBox)
Dim included As Boolean = chkIncluded.Checked
textArray = Split(inputText, "{ " & blockName & " }")
If InStr(inputText, blockName) > 0 Then 'tests that correct button pressed
Select Case blockType
Case "Short Text"
outputText = textArray(0) & shortText & textArray(1)
Case "Long Text"
outputText = textArray(0) & longText & textArray(1)
Case "Single Select"
outputText = ""
Case "Multi Select"
outputText = ""
Case Else
End Select
ftb1.Text = Trim(outputText)
'Delete Block and rebind rptBlock_Tab2
Dim BlockId As Integer = Convert.ToInt16(e.CommandArgument)
'Dictionary is cleared in Populate_RptBlock_Tab2
Dim EmbeddedBlocksDictionary As Dictionary(Of String, Integer) = CType(Session("DictEmbeddedBlocks"), Dictionary(Of String, Integer))
If EmbeddedBlocksDictionary.ContainsKey(blockName) = False Then
EmbeddedBlocksDictionary.Add(blockName, BlockId) 'This is the block name and id of the item that was clicked on
Dim dt1 As DataTable = New DataTable()
Dim sqlConn As SqlConnection = New SqlConnection(ConfigurationManager.ConnectionStrings("DB_A54278_steve48ConnectionString").ConnectionString)
Dim query1 As String = "SELECT Name as BlockName,blocktype.blocktype As BlockType,block.id
From block Join blocktype On block.blocktype_id =blocktype.id
Join block_template ON block.id=block_template.block_id
WHERE block_template.template_id = @templateid
ORDER BY typeorder"
Dim cmd1 As SqlCommand = New SqlCommand(query1, sqlConn)
Dim da1 As SqlDataAdapter = New SqlDataAdapter(cmd1)
'Try
cmd1.Parameters.AddWithValue("@templateid", Session("ActiveTemplateID"))
dt1.Columns.Add("BlockName", GetType(String))
dt1.Columns.Add("id", GetType(Integer))
dt1.Columns.Add("BlockType", GetType(String))
sqlConn.Open()
Dim rdr As SqlDataReader = cmd1.ExecuteReader()
While rdr.Read
If EmbeddedBlocksDictionary.ContainsKey(rdr("BlockName").ToString()) = False Then
'If Then block Is Not In the dictionary it can be added To dt1 To be displayed
'Any block previously clicked on is in the dictionary
dt1.Rows.Add(rdr("BlockName").ToString(), Convert.ToInt16(rdr("id").ToString))
End If
End While
rdr.Close()
Dim numrows As Integer = dt1.Rows.Count
sqlConn.Close()
rptBlock_Tab2.DataSource = dt1
rptBlock_Tab2.DataBind()
Session("DictEmbeddedBlocks") = EmbeddedBlocksDictionary
'Catch ex As Exception
'End Try
End If
End If
End If
End Sub
And here is the repeater ItenDataBound command, This is where the variable block type is empty after the gridview button is clicked.
Private Sub rptBlock_Tab2_ItemDataBound(sender As Object, e As RepeaterItemEventArgs) Handles rptBlock_Tab2.ItemDataBound
If e.Item.ItemType = ListItemType.Item Or e.Item.ItemType = ListItemType.AlternatingItem Then
Dim hf As HiddenField = CType(e.Item.FindControl("hfBlockID"), HiddenField)
Dim blockId As Integer
blockId = Convert.ToInt16(hf.Value)
Dim blocktype As String
Dim lbl1 As Label = CType(e.Item.FindControl("lblBlockType"), Label)
blocktype = lbl1.Text.ToString
Dim gv As GridView = CType(e.Item.FindControl("gvContent2"), GridView)
gv.DataSource = EMailGen3.GridviewContent.GetAllGridViewContents(blockId)
gv.DataBind()
Select Case blocktype
Case "Short Text", "Single Select", "Multi Select"
gv.Columns(1).Visible = False
Case "Long Text"
'Do Nothing
Case Else
End Select
gv.DataBind()
Dim btn As Button = CType(e.Item.FindControl("btnUse"), Button)
If blocktype <> "Multi Select" Then
btn.Visible = False
End If
End If
End Sub
Gridview Nested in Repeater-Postback problem
