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Change GridDropDownColumn width during edit mode in detail table?

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Grid

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4 Answers, 1 is accepted

answered on 22 Jul 2010, 06:37 AM

Hellp Paul,

In ItemDataBound check for the name of DetailTable to access the control in DropDownColumn of that table.

ASPX:

<telerik:RadGrid ID="RadGrid2" DataSourceID="SqlDataSource1" runat="server" OnItemDataBound="RadGrid1_ItemDataBound">

<MasterTableView Name="Master" runat="server" EditMode="InPlace">

<DetailTables>

<telerik:GridTableView Name="GridTableView1" runat="server" DataSourceID="SqlDataSource2"

EditMode="InPlace">

<Columns>

<telerik:GridDropDownColumn UniqueName="GridDropDownColumn" DropDownControlType="DropDownList">

</telerik:GridDropDownColumn>

<telerik:GridEditCommandColumn>

</telerik:GridEditCommandColumn>

</Columns>

</telerik:GridTableView>

</DetailTables>

</MasterTableView>

</telerik:RadGrid>

C#:

protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)

{

if (e.Item is GridEditableItem && e.Item.IsInEditMode && e.Item.OwnerTableView.Name == "GridTableView1")//check with the name of DetailTable

{

GridEditableItem editItem = (GridEditableItem)e.Item;

DropDownList drList = (DropDownList)editItem["GridDropDownColumn"].Controls[0];

drList.Width = Unit.Pixel(500);

}

Hope this helps,
Princy.

answered on 22 Jul 2010, 04:26 PM

Hi Princy

I am using form edit mode and pretty much same code as you but no joy. Here is what I am doing. I set a breakpoint in the section where it should change the width but it never gets there.

protected void RadGridShifts_ItemDataBound(object sender, GridItemEventArgs e)

{

try

{

// Perform default value settings

if (e.Item.OwnerTableView.IsItemInserted && e.Item is GridEditFormInsertItem)

{

// Auto complete when the shift was created

GridEditFormInsertItem item = (GridEditFormInsertItem)e.Item;

TextBox textBox = (TextBox)item["Shift_Created_Date"].Controls[0];

textBox.Text = DateTime.UtcNow.ToString();

}

// Item about to be edited

if (!(e.Item is GridDataInsertItem) && e.Item.IsInEditMode)

{

RadDateTimePicker DeadlineRadDatePicker = (RadDateTimePicker)e.Item.FindControl("Shift_DeadlineRadDatePicker");

DeadlineRadDatePicker.MinDate = DateTime.Now.Date;

}

// TRIED GridEditableItem here too and neither ever enters if statement

if (e.Item is GridEditFormItem && e.Item.IsInEditMode && e.Item.OwnerTableView.Name == "GridTableViewLocations")

{

GridEditableItem editItem = (GridEditableItem)e.Item;

DropDownList ddl = (DropDownList)editItem["LocationLookup"].Controls[0];

ddl.Width = Unit.Pixel(500);

}

// Control whether edit button should be enabled

if (e.Item is GridDataItem)

{

GridDataItem item = (GridDataItem)e.Item;

Button btnEdit = (Button)item["EditButton"].Controls[0];

DateTime? dateDeadline = DateTime.Parse(((DataRowView)e.Item.DataItem)["Shift_Deadline"].ToString());

if (btnEdit != null && dateDeadline.HasValue)

if (dateDeadline < DateTime.UtcNow) btnEdit.Enabled = false;

}

catch (Exception ex)

{

}

<DetailTables>

<telerik:GridTableView runat="server" DataSourceID="ObjectDataShiftLocations" DataKeyNames="Shift_Id"

ShowFooter="false" CommandItemDisplay="Top" CommandItemSettings-AddNewRecordText="Add New Location To Shift"

AllowAutomaticDeletes="True" AllowAutomaticInserts="True" AllowAutomaticUpdates="True"

OnNeedDataSource="RadGridLocation_NeedDataSource" Name="GridTableViewLocations">

<PagerStyle AlwaysVisible="false" />

<ParentTableRelation>

<telerik:GridRelationFields DetailKeyField="Shift_Id" MasterKeyField="Id" />

</ParentTableRelation>

<CommandItemSettings AddNewRecordText="Add New Location To Shift"></CommandItemSettings>

<Columns>

<telerik:GridButtonColumn CommandName="Edit" Text="Edit" UniqueName="commandEdit"

ButtonType="ImageButton">

<ItemStyle HorizontalAlign="Center" Width="30px"></ItemStyle>

</telerik:GridButtonColumn>

<telerik:GridButtonColumn CommandName="Delete" Text="Remove" UniqueName="commandDelete"

ButtonType="ImageButton">

<ItemStyle HorizontalAlign="Center" Width="30px"></ItemStyle>

</telerik:GridButtonColumn>

<telerik:GridDropDownColumn UniqueName="LocationLookup" DataSourceID="ObjectDataSourceLocationLookup"

DataField="Location_Id" ListValueField="Location_Id" ListTextField="Short_Name"

DropDownControlType="RadComboBox" HeaderText="Location To Check">

</telerik:GridDropDownColumn>

</Columns>

<EditFormSettings>

<EditColumn UniqueName="EditCommandColumnLocationCheck" ButtonType="ImageButton">

</EditColumn>

</EditFormSettings>

</telerik:GridTableView>

</DetailTables>

This is really driving me nuts. Can you see something really simple I am missing as its so obvious I just cannot spot it?

Thanks

Accepted

answered on 23 Jul 2010, 01:20 PM

Hello Paul,

Since you are setting DropDownControlType property of GridDropDownColumn as 'RadComboBox', access the control as RadComboBox and see whether this solves your issue.

C#:

protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)

{

if (e.Item is GridEditFormItem && e.Item.IsInEditMode && e.Item.OwnerTableView.Name == "GridTableViewLocations")

{

GridEditableItem editItem = (GridEditableItem)e.Item;

RadComboBox combo= (RadComboBox)editItem["LocationLookup"].Controls[0];

combo.Width = Unit.Pixel(500);

}

Thanks,
Princy.