gridview inside datagrid doen't raise RowCommand event

[=?Utf-8?B?cGF0cmlja2RyZA==?=]

Hi all!

I have a gridview inside a datagrid (nested) for which (gridview) the
rowcommand is not raised in order to delete a row from the grid!

I also tried OnRowCommand="m ethod", didn't work either!

Does anyone know how can I make this work?

Thanks in advance!

[=?Utf-8?B?UGFydmF0aHkgUGFkbWFuYWJoYW4=?=]

Hi,

As long as you bind the datasource for the nested - Inner gridview in
the ItemDataBound event and not in the ItemCreated Event of the outer Data
grid, it shd work...the RowCommand event of the inner Gridview will fire.

// dgMyGrid is my outer DataGrid.
// gvMyGridView is the inner GridView.
protected void dgMyGrid_ItemDa taBound(object sender, DataGridItemEve ntArgs e)
{
if (e.Item.ItemTyp e == ListItemType.It em || e.Item.ItemType ==
ListItemType.Al ternatingItem )
{
((GridView)e.It em.FindControl( "gvMyGridView") ).DataSource = dt;
((GridView)e.It em.FindControl( "gvMyGridView") ).DataBind();
}
}

public void gvMyGridView_Ro wCommand(object sender, GridViewCommand EventArgs e)
{
// Your delete code for the RowCommand...

}

In the HTML Source:
<asp:DataGrid ID="dgMyGrid" runat="server" AutoGenerateCol umns="false"
OnItemDataBound ="dgMyGrid_Item DataBound" >
<Columns>
<asp:BoundColum n DataField="col1 " HeaderText="Col um 1" />
<asp:TemplateCo lumn HeaderText="Nes ted GridView Column">
<ItemTemplate >
<asp:GridView ID="gvMyGridVie w" runat="server"
OnRowCommand="g vMyGridView_Row Command"
AutoGenerateCol umns="false" >
<Columns>
<asp:BoundFie ld DataField="col2 "
HeaderText="Inn erCol1" />
<asp:BoundFie ld DataField="col3 "
HeaderText="Inn erCol2"/>
<asp:ButtonFiel d ButtonType="but ton"
CommandName="De lete"
Text="delete"
HeaderText="Del ete" />
</Columns>
</asp:GridView>
</ItemTemplate>
</asp:TemplateCol umn>
</Columns>
</asp:DataGrid>
I guess this shd work...

-Parvathy Padmanabhan

[=?Utf-8?B?cGF0cmlja2RyZA==?=]

oops... sorry,
it's actually a gridview inside a datalist, sorry for that...
I DO bind the gridview inside the datalist's ItemDataBound event and doesn't
work!!!
Please help me out, I can't figure out what is going wrong here!

"Parvathy Padmanabhan" wrote:

Hi,

As long as you bind the datasource for the nested - Inner gridview in
the ItemDataBound event and not in the ItemCreated Event of the outer Data
grid, it shd work...the RowCommand event of the inner Gridview will fire.

// dgMyGrid is my outer DataGrid.
// gvMyGridView is the inner GridView.
protected void dgMyGrid_ItemDa taBound(object sender, DataGridItemEve ntArgs e)
{
if (e.Item.ItemTyp e == ListItemType.It em || e.Item.ItemType ==
ListItemType.Al ternatingItem )
{
((GridView)e.It em.FindControl( "gvMyGridView") ).DataSource = dt;
((GridView)e.It em.FindControl( "gvMyGridView") ).DataBind();
}
}

public void gvMyGridView_Ro wCommand(object sender, GridViewCommand EventArgs e)
{
// Your delete code for the RowCommand...

}

In the HTML Source:
<asp:DataGrid ID="dgMyGrid" runat="server" AutoGenerateCol umns="false"
OnItemDataBound ="dgMyGrid_Item DataBound" >
<Columns>
<asp:BoundColum n DataField="col1 " HeaderText="Col um 1" />
<asp:TemplateCo lumn HeaderText="Nes ted GridView Column">
<ItemTemplate >
<asp:GridView ID="gvMyGridVie w" runat="server"
OnRowCommand="g vMyGridView_Row Command"
AutoGenerateCol umns="false" >
<Columns>
<asp:BoundFie ld DataField="col2 "
HeaderText="Inn erCol1" />
<asp:BoundFie ld DataField="col3 "
HeaderText="Inn erCol2"/>
<asp:ButtonFiel d ButtonType="but ton"
CommandName="De lete"
Text="delete"
HeaderText="Del ete" />
</Columns>
</asp:GridView>
</ItemTemplate>
</asp:TemplateCol umn>
</Columns>
</asp:DataGrid>
I guess this shd work...

-Parvathy Padmanabhan

[=?Utf-8?B?UGFydmF0aHkgUGFkbWFuYWJoYW4=?=]

Hi,

The RowCommand event of the inner gridview wld fire, provided you bind
your Datalist in the first request and not again in the subsequent post backs.

//dlMyDataList is the datalist am using and dt is my datatable, which will
be the source.

if (! IsPostBack)
{
dlMyDataList.Da taSource = dt;
dlMyDataList.Da taBind();
}

if you have bound your datalist on the page load and if you are rebinding it
during every post back, the onRowCommand event will not fire because, the
grid view gets created every single time.

I guess that shd resolve your problem....

- Parvathy Padmanabhan

[=?Utf-8?B?cGF0cmlja2RyZA==?=]

No, I don't!
Well here is my code:

<asp:datalist id="lstTicketsInfo" cellspacing="0" cellpadding="0"
repeatdirection="Vertical" enableviewstate="false" runat="Server" >
<ItemTemplate>
<asp:gridview id="gvBasket" runat="server"
CssClass="myGrid" GridLines="None" ShowHeader="True"
ShowFooter="True" autogeneratecolumns="False"
OnRowCommand="gvBasket_RowCommand">
<headerstyle horizontalalign="Right"></headerstyle>
<rowstyle HorizontalAlign="Right"/>
<FooterStyle HorizontalAlign="Right"/>
<columns>
<asp:TemplateField HeaderText="Quantity">
<headerstyle horizontalalign="Right"></headerstyle>
<ItemTemplate><input id="txtQuantity" style="text-align: right;"
runat="server" Value='<%# Eval("Quantity") %>' /></ItemTemplate>
<FooterTemplate><input id="txtQuantityTotal" style="text-align:
right;" readonly="readonly" runat="server" /></FooterTemplate>
</asp:TemplateField>
 
<asp:TemplateField HeaderText="Price">
<ItemTemplate><asp:Label ID="lblPrice" runat="server" Text='<%#
Eval("Price") %>'></asp:Label></ItemTemplate>
</asp:TemplateField>
 
<asp:TemplateField HeaderText="Total">
<ItemTemplate><asp:Label ID="lblTotalSingle" runat="server"
Text='<%# Eval("Total") %>'></asp:Label></ItemTemplate>
<FooterTemplate><input id="txtPriceTotal" style="text-align:
right;" readonly="readonly" runat="server" /></FooterTemplate>
</asp:TemplateField>
 
<asp:TemplateField>
<ItemTemplate><asp:button id="btnDelete" text="" CommandName =
"Delete" CommandArgument='<%# Eval("EventID").ToString() & "~" &
Eval("D13_D05_IDs").ToString() & "|" & Eval("E01_i03_id").ToString() & "~" &
Eval("E01_index").ToString() %>' runat="server" OnCommand="DeleteTicket"
/></ItemTemplate>
</asp:TemplateField>
</columns>
</asp:gridview>
</ItemTemplate>
</asp:datalist>
 

Imports System.Data
 
Partial Class Basket
Inherits System.Web.UI.Page
 
Private m_QuantitySubTotal As Byte
Private m_PriceSubTotal As Double
Private WithEvents gvBasket As GridView
Private m_ActiveGridCounter As Byte
 
Private m_QuantityTotal As Byte
Private m_PriceTotal As Double
 
Private ReadOnly Property colBasketItems() As helperclasses.BasketItems
Get
If Session("colBasketItems") Is Nothing Then
Return Nothing
Else
Return CType(Session("colBasketItems"), helperclasses.BasketItems)
End If
End Get
End Property
 
Protected Sub Page_Load(ByVal sender As Object, ByVal e As
System.EventArgs) Handles Me.Load
 
Master.BasketControl.Visible = False
 
If Me.IsPostBack Then Exit Sub
 
LoadMasterData()
 
End Sub
 
Private Sub LoadMasterData()
 
If colBasketItems Is Nothing OrElse (Not CBool(colBasketItems.Count)) Then
If Session("EventId") Is Nothing OrElse (Not
IsNumeric(Session("EventId"))) Then Exit Sub
Response.Redirect("~/BookingSteps/EventBookStep1.aspx?id=" &
Session("EventId").ToString)
Exit Sub
End If
 
Dim dsBasketItems As New DataSet
With dsBasketItems
.Tables.Add("BasketItems")
With .Tables(0).Columns
.Add("EventName", GetType(String))
.Add("VenueName", GetType(String))
.Add("EventDate", GetType(String))
.Add("EventID", GetType(Integer))
.Add("D13_D05_IDs", GetType(String))
End With
End With
 
For Each colTickets As helperclasses.Tickets In colBasketItems
Dim dr As DataRow = dsBasketItems.Tables(0).NewRow
With colTickets
dr("EventName") = .EventName
dr("VenueName") = .VenueName
dr("EventDate") = String.Format("{0:dd\/MM\/yyyy - HH:mm}",
..EventDate)
dr("EventID") = .EventID
dr("D13_D05_IDs") = .D13_D05_IDs
End With
dsBasketItems.Tables(0).Rows.Add(dr)
Next
 
If Not CBool(dsBasketItems.Tables(0).Rows.Count) Then
InfoLabel1.InnerHtml = "Δεν Î²Ï�Î*θηκαν Î´ÎµÎ´Î¿Î¼Î*να."
Exit Sub
End If
 
lstTicketsInfo.DataSource = dsBasketItems
lstTicketsInfo.DataBind()
 
txtQuantityTotal.Value = m_QuantityTotal.ToString
txtPriceTotal.Value = String.Format("{0:##,##0.00;(##,##0.00);0}",
m_PriceTotal)
 
End Sub
 
Protected Sub lstTicketsInfo_ItemDataBound(ByVal sender As Object, ByVal e
As System.Web.UI.WebControls.DataListItemEventArgs) Handles
lstTicketsInfo.ItemDataBound
 
gvBasket = CType(e.Item.FindControl("gvBasket"),
System.Web.UI.WebControls.GridView)
LoadDetailData(gvBasket, _
CType(CType(e.Item.FindControl("lblEventID"),
Label).Text, Integer), _
CType(e.Item.FindControl("lblD13_D05_IDs"), Label).Text)
 
End Sub
 
Protected Sub lstTicketsInfo_ItemCreated(ByVal sender As Object, ByVal e
As System.Web.UI.WebControls.DataListItemEventArgs) Handles
lstTicketsInfo.ItemCreated
 
Dim gvInnerBasket As GridView = CType(e.Item.FindControl("gvBasket"),
GridView)
AddHandler gvInnerBasket.RowCommand, AddressOf gvBasket_RowCommand
 
End Sub
 
Private Sub LoadDetailData(ByRef gvBasket As GridView, ByVal nEventId As
Integer, ByVal sD13_D05_IDs As String)
 
Dim dsTickets As New DataSet
With dsTickets
.Tables.Add("Tickets")
With .Tables(0).Columns
.Add("Quantity", GetType(String))
.Add("Price", GetType(String))
.Add("Total", GetType(String))
.Add("EventID", GetType(Integer))
.Add("D13_D05_IDs", GetType(String))
.Add("E01_i03_id", GetType(Integer))
.Add("E01_index", GetType(Integer))
End With
End With
 
For Each ticket As helperclasses.Ticket In
colBasketItems(nEventId.ToString & "~" & sD13_D05_IDs)
Dim dr As DataRow = dsTickets.Tables(0).NewRow()
With ticket
dr("Price") = String.Format("{0:##,##0.00;(##,##0.00);0}", .Price +
..ServiceCharge)
If .Section = "" Then
dr("Quantity") = .E01_index.ToString
Else
dr("Quantity") = colBasketItems(nEventId.ToString & "~" &
sD13_D05_IDs).Count
End If
dr("Total") = String.Format("{0:##,##0.00;(##,##0.00);0}", (.Price +
..ServiceCharge) * .E01_index)
dr("EventID") = nEventId.ToString
dr("D13_D05_IDs") = sD13_D05_IDs
dr("E01_i03_id") = .E01_i03_id
dr("E01_index") = .E01_index
End With
dsTickets.Tables(0).Rows.Add(dr)
Next
 
If Not CBool(dsTickets.Tables(0).Rows.Count) Then
Exit Sub
End If
 
m_QuantitySubTotal = 0
m_PriceSubTotal = 0
 
gvBasket.DataSource = dsTickets
gvBasket.DataBind()
 
m_QuantityTotal += m_QuantitySubTotal
m_PriceTotal += m_PriceSubTotal
 
End Sub
 
Protected Sub gvBasket_RowDataBound(ByVal sender As Object, ByVal e As
System.Web.UI.WebControls.GridViewRowEventArgs) Handles gvBasket.RowDataBound
 
If e.Row.RowType = DataControlRowType.DataRow Then
m_QuantitySubTotal +=
CType(Val(CType(e.Row().FindControl("txtQuantity"), HtmlInputText).Value),
Integer)
m_PriceSubTotal +=
CType(Val(CType(e.Row().FindControl("lblTotalSingle"), Label).Text), Double)
ElseIf e.Row.RowType = DataControlRowType.Footer Then
CType(e.Row.FindControl("txtQuantityTotal"), HtmlInputText).Value =
m_QuantitySubTotal.ToString
CType(e.Row.FindControl("txtPriceTotal"), HtmlInputText).Value =
String.Format("{0:##,##0.00;(##,##0.00);0}", m_PriceSubTotal)
End If
 
End Sub
 
Protected Sub gvBasket_RowCommand(ByVal sender As Object, ByVal e As
System.Web.UI.WebControls.GridViewCommandEventArgs) Handles
gvBasket.RowCommand
 
If e.CommandName = "Delete" Then
colBasketItems(Split(e.CommandArgument.ToString,
"|")(0)).Remove(Split(e.CommandArgument.ToString, "|")(1))
LoadMasterData()
End If
 
End Sub
 
Protected Sub DeleteTicket(ByVal sender As Object, ByVal e As
System.Web.UI.WebControls.CommandEventArgs)
 
colBasketItems(Split(e.CommandArgument.ToString,
"|")(0)).Remove(Split(e.CommandArgument.ToString, "|")(1))
LoadMasterData()
 
End Sub
End Class
 

[=?Utf-8?B?UGFydmF0aHkgUGFkbWFuYWJoYW4=?=]

Hi,

You need not have to handle your ItemCreated event for the datalist and
also it is not necessary to create an event handler for the rowCommand of the
grid view.

You cld take a look at my sample code for the same.

Html:

<asp:DataList ID="dlDataList " runat="Server"
OnItemDataBound ="dlDataList_It emDataBound">
<ItemTemplate >
<asp:GridView ID="gvMyGridVie w_1" runat="server"
OnRowCommand="g vMyGridView_1_R owCommand"
AutoGenerateCol umns="false" >
<Columns>
<asp:BoundFie ld DataField="col2 " HeaderText="Inn erCol1" />
<asp:BoundFie ld DataField="col3 " HeaderText="Inn erCol2"/>
<asp:ButtonFiel d ButtonType="but ton"
CommandName="te st" Text="delete"
HeaderText="Del ete" />
</Columns>
</asp:GridView>
</ItemTemplate>
</asp:DataList>
Source Code C#:

// I am using the same datatable for both the girdView and the
datalist,
// but that shd not have any effect here..

DataTable dt = new DataTable();
protected void Page_Load(objec t sender, EventArgs e)
{

dt.Columns.Add( "col1");
dt.Columns.Add( "col2");
dt.Columns.Add( "col3");

DataRow dr = dt.NewRow();
dr[0] = "A11";
dr[1] = "A12";
dr[2] = "A13";
dt.Rows.Add(dr) ;

dr = dt.NewRow();
dr[0] = "A21";
dr[1] = "A22";
dr[2] = "A23";
dt.Rows.Add(dr) ;

dr = dt.NewRow();
dr[0] = "A31";
dr[1] = "A32";
dr[2] = "A33";
dt.Rows.Add(dr) ;

if (! IsPostBack)
{
dlDataList.Data Source = dt;
dlDataList.Data Bind();
}

}

protected void dlDataList_Item DataBound(objec t sender, DataListItemEve ntArgs
e)
{
if (e.Item.ItemTyp e == ListItemType.Al ternatingItem ||
e.Item.ItemType == ListItemType.It em)
{
((GridView)e.It em.FindControl( "gvMyGridView_1 ")).DataSou rce
= dt;
((GridView)e.It em.FindControl( "gvMyGridView_1 ")).DataBin d();
}
}

public void gvMyGridView_1_ RowCommand(obje ct sender,
GridViewCommand EventArgs e)
{
if (e.CommandName == "test")
Response.Write( "My rowCommand jus fired");

}
The code above works fine...
Probably jus try removing the itemCreated event of the datalist and re-run
your code.
I guess the rest of it is completely fine.

Let me know how it goes.....

- Parvathy Padmanabhan

[=?Utf-8?B?cGF0cmlja2RyZA==?=]

thanks for your herp Parvathy Padmanabhan!

The ItemCreated event is just for testing in order to make that event work!

I'll try tomorrow and I'll let you know!

[=?Utf-8?B?cGF0cmlja2RyZA==?=]

found that!

it was not working because I had enableviewstate ="false" on the datalist