Rank 1
I am trying to attach an event to a DropdownList which is part of my Edit Form. But the SlectedIndex_changed event doesn't fire even though when I select it does a postback. Appreciate any help
<telerik:RadGrid ID="rgContactNumber"
OnItemCommand="rgContactNumber_ItemCommand"
OnItemDataBound="rgContactNumber_ItemDataBound"
OnNeedDataSource="rgContactNumber_NeedDataSource"
OnUpdateCommand="rgContactNumber_UpdateCommand"
AllowAutomaticDeletes="True" AllowAutomaticUpdates="True"
AllowAutomaticInserts="true" AllowPaging="True"
AllowSorting="True" AutoGenerateColumns="False"
EnableAJAX="True"
GridLines="Horizontal" runat="server" Width="98%"
EnableAJAXLoadingTemplate="False"
LoadingTemplateTransparency="0"
PageSize="5">
<ClientSettings>
<Scrolling AllowScroll="True" UseStaticHeaders="False" />
<Selecting AllowRowSelect="True" />
</ClientSettings>
<MasterTableView Width="100%" GridLines="Horizontal" DataKeyNames="ContactID" PageSize="5"
AutoGenerateColumns="False" CommandItemDisplay="TopAndBottom">
<CommandItemTemplate>
<table>
<tr>
<td width="30%">
<asp:LinkButton ID="btnAdd" Text="Add Contact Number" CommandName="InitInsert" runat="server"/>
</td>
</tr>
</table>
</CommandItemTemplate>
<Columns>
<telerik:GridEditCommandColumn ButtonType="ImageButton"
UpdateImageUrl="../App_Themes/Default/DataEditingImages/Edit.gif"
CancelImageUrl="../App_Themes/Default/DataEditingImages/Cancel.gif">
</telerik:GridEditCommandColumn>
<telerik:GridBoundColumn DataField="ContactId" Groupable="False" HeaderText="Contact Id"
UniqueName="ContactIdColumn" ReadOnly="True" Visible="false">
</telerik:GridBoundColumn>
<telerik:GridBoundColumn DataField="ContactValue" HeaderText="Phone Number"
SortExpression="ContactValue" UniqueName="ContactValue">
</telerik:GridBoundColumn>
<telerik:GridBoundColumn DataField="ContactSubType.Description" HeaderText="Contact Type"
SortExpression="ContactSubType.Description"
UniqueName="PhoneType" ReadOnly="true" Visible="true">
</telerik:GridBoundColumn>
<telerik:GridBoundColumn DataField="ContactDescription" HeaderText="Describe Other"
SortExpression="ContactDescription" UniqueName="ContactDescription"
Visible="false">
</telerik:GridBoundColumn>
<telerik:GridCheckBoxColumn DataField="IsPrimary" HeaderText="Primary"
UniqueName="Primary" Visible="true">
</telerik:GridCheckBoxColumn>
<telerik:GridDropDownColumn HeaderText="Phone Type" UniqueName="ddlPhoneType" Visible="false"
ListValueField="ContactSubTypeID"
ListTextField="Description"
DropDownControlType="DropDownList">
</telerik:GridDropDownColumn>
<telerik:GridButtonColumn ConfirmText="Are you sure you want to Delete this Contact?"
ButtonType="ImageButton"
ImageUrl="../App_Themes/Default/DataEditingImages/Delete.gif"
CommandName="Delete"
Text="Delete"
UniqueName="DeleteColumn">
<HeaderStyle Width="20px"/>
</telerik:GridButtonColumn>
</Columns>
<EditFormSettings EditFormType="Template">
<FormTemplate>
<table id="Table2" cellspacing="2" cellpadding="1" width="100%" border="0" rules="none" style="border-collapse: collapse;background:white;">
<tr>
<td colspan="2" style="font-size: small"><b>Contact Details</b></td>
</tr>
<tr>
<td>
<table id="Table3" cellspacing="1" cellpadding="1" width="250" border="0">
<tr>
<td>
</td>
<td>
</td>
</tr>
<tr>
<td>Phone Number</td>
<td><asp:TextBox ID="txtContactValue" runat="server" Text='<%# Bind( "ContactValue" ) %>'/></td>
</tr>
<tr>
<td>Phone Type</td>
<td>
<asp:DropDownList ID="ddlPhoneType"
DataSourceID="odsContactSubTypes"
DataTextField="Description"
DataValueField="ContactSubtypeID"
runat="server"
AutoPostBack="true"
ShowToggleImage="True"
Width="150px">
</asp:DropDownList>
</td>
</tr>
<tr>
<td>Is Primary</td>
<td><asp:CheckBox ID="chkIsPrimary" runat="server"/></td>
</tr>
<tr>
<td>Describe Other</td>
<td><asp:TextBox ID="txtContactDescription" runat="server" Visible="false"/></td>
</tr>
<tr>
<td align="right" colspan="2">
<asp:Button ID="btnUpdate"
Text='<%# (Container is GridEditFormInsertItem) ? "Insert" : "Update" %>'
runat="server"
CommandName='<%# (Container is GridEditFormInsertItem) ? "PerformInsert" : "Update" %>'>
</asp:Button>
<asp:Button ID="btnCancel"
Text="Cancel"
runat="server"
CausesValidation="False"
CommandName="Cancel">
</asp:Button>
</td>
</tr>
</table>
</FormTemplate>
</EditFormSettings>
</MasterTableView>
</telerik:RadGrid>
Here is the Code Behind
protected void rgContactNumber_ItemDataBound(object sender, GridItemEventArgs e)
{
if (e.Item is GridEditFormItem && e.Item.IsInEditMode)
{
GridEditFormItem item = e.Item as GridEditFormItem;
DropDownList ddl = (DropDownList)item.FindControl("ddlPhoneType");
ddl.AutoPostBack = true;
ddl.SelectedIndexChanged += new EventHandler(ddl_SelectedIndexChanged);
ddl.DataSource = CollateralPartyBLO.GetContactSubTypes();
ddl.DataBind();
}
}
protected void ddl_SelectedIndexChanged(object sender, EventArgs e)
{
int id = ddl.SelectedIndex;
}
2 Answers, 1 is accepted
Rank 2
Can you try setting the SelectedIndexChanged event handler in the aspx and see whether it is firing?
ASPX:
| <asp:DropDownList ID="DropDownList1" runat="server" OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged"> |
| </asp:DropDownList> |
Shinu.
Rank 1
Hi. I'm using a radCombobox and I had to do the following:
ddl.SelectedIndexChanged +=
new RadComboBoxSelectedIndexChangedEventHandler(ddl_SelectedIndexChanged);
Hope this helps.