Hide RadGridDropDown Column in Edit Mode

[Bahram]

Hello everybody,
I have seen many posts and comments about this but none do works,
I have a RadGrid with a GridDropDownColumn, I tend to make it invisible in Edit Mode(when I click Edit Button of selected row) under specific Condition in Code Behind.It is not in Inplace Mode.Here Is My Source Code :
I want to hide "SiteOwnerId" under Specific Condition.

<telerik:RadGrid ID="RadGridUserInfo" CssClass="myRadGrid" GridLines="None" runat="server"

AllowAutomaticDeletes="True" PageSize="12" AllowPaging="True" AutoGenerateColumns="False"

OnItemUpdated="RadGridUserInfo_ItemUpdated" OnItemDeleted="RadGridUserInfo_ItemDeleted"

OnItemInserted="RadGridUserInfo_ItemInserted" OnDataBound="RadGridUserInfo_DataBound"

AllowFilteringByColumn="True" OnItemCreated="RadGridUserInfo_ItemCreated" OnInsertCommand="RadGridUserInfo_InsertCommand"

OnUpdateCommand="RadGridUserInfo_UpdateCommand" OnNeedDataSource="RadGridUserInfo_NeedDataSource"

OnEditCommand="RadGridUserInfo_EditCommand" OnItemDataBound="RadGridUserInfo_ItemDataBound"

OnDeleteCommand="RadGridUserInfo_DeleteCommand"

oncolumncreated="RadGridUserInfo_ColumnCreated">

<SelectedItemStyle Font-Names="Tahoma" Font-Size="11px" ForeColor="#8abe23" />

<MasterTableView Width="100%" CommandItemDisplay="TopAndBottom" DataKeyNames="UserInfoId"

HorizontalAlign="NotSet" AutoGenerateColumns="False" Font-Names="Tahoma" EditFormSettings-FormStyle-ForeColor="Black"

Font-Size="11px">

<CommandItemTemplate>

<div style="padding: 5px 5px;" dir="rtl">

asp:LinkButton ID="LinkButton4" runat="server" Font-Names="Tahoma" CommandName="RebindGrid"><img style="border:0px;vertical-align:middle;" alt="" src="../Images/Icons/Refresh.gif" />به روزآوري اطلاعات</asp:LinkButton>

</div>

</CommandItemTemplate>

<Columns>

<telerik:GridEditCommandColumn ButtonType="ImageButton" UniqueName="EditCommandColumn">

<ItemStyle CssClass="MyImageButton" />

</telerik:GridEditCommandColumn>

<telerik:GridButtonColumn ConfirmText="آيا از حذف ركورد جاري مطمئنيد؟" ConfirmDialogType="RadWindow"

ConfirmTitle="حذف ركورد جاري" ButtonType="ImageButton" CommandName="Delete" Text="حذف"

UniqueName="DeleteColumn">

<ItemStyle HorizontalAlign="Center" CssClass="MyImageButton" />

</telerik:GridButtonColumn>

<telerik:GridDropDownColumn DataField="SiteOwnerId" EditFormColumnIndex="1" HeaderText="شركت فروشنده پنل"

UniqueName="SiteOwnerId" ListTextField="SiteOwnerName" ListValueField="SiteOwnerId"

DataSourceID="sds_SiteOwner" ColumnEditorID="GridDropDownEditor">

</telerik:GridDropDownColumn>

</Columns>

<EditFormSettings ColumnNumber="3" CaptionDataField="UserInfoId" CaptionFormatString="ويرايش اطلاعات"

InsertCaption="">

<EditColumn ButtonType="ImageButton" InsertText="ثبت پنل" UpdateText="ويرايش پنل"

UniqueName="EditCommandColumn1" CancelText="لغو ويرايش">

</EditColumn>

</EditFormSettings>

</MasterTableView>

</telerik:RadGrid>

[Princy]

Hello Bahram,

GridDropDownColumn is rendered as DropDownList in edit mode. Try the following code snippet to hide the dropdowncolumn in edit mode.
aspx:

<telerik:GridDropDownColumn DataField="SiteOwnerId" EditFormColumnIndex="1" HeaderText="شركت فروشنده پنل"
  UniqueName="SiteOwnerId" ListTextField="SiteOwnerName" ListValueField="SiteOwnerId"
  DataSourceID="sds_SiteOwner" ColumnEditorID="GridDropDownEditor" DropDownControlType="DropDownList">
</telerik:GridDropDownColumn>

C#:

protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)
{
       if (e.Item is GridEditableItem && e.Item.IsInEditMode)
        {
            GridEditableItem item = (GridEditableItem)e.Item;
            DropDownList drList = (DropDownList)item["SiteOwnerId"].Controls[0];
            drList.Visible = false;
        }
}

Thanks,
Princy.

[Bahram]

Hi Princy,
It is perfect,thank you So much.

[Bahram]

Hi Princy,
There is still a problem.The HeaderText of DropDown is still on the page and I didnt found a property like this to make it invisible.

DropDownList

 

 

drList = (DropDownList)editedItem["SiteOwnerId"].Controls[0];

 

drList.HeaderText = ...
or something like this.

 

[Princy]

Hello Bahram,

Try the following code snippet in PreRender event to hide the header text.
C#:

protected void RadGrid1_PreRender(object sender, EventArgs e)
{
 RadGrid1.MasterTableView.GetColumn("SiteOwnerId").HeaderText = "";
}

Thanks,
Princy.