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[Solved] Bind data on Combobox in RadGrid

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Grid

This is a migrated thread and some comments may be shown as answers.

Khiem asked on 07 Apr 2013, 06:00 PM

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Hi All !
I'm from VietNam. Today I have a question for you. I need you help me . Thanks

I have use RadGrid and input controls in EdtiFormSetting --> FormTemplate. I have use Treeview in Combobox . But I can't get value for combobox when i edit row and use updatecommand .

I have attach file below.

This is my code :

HTML :

<EditFormSettings EditFormType="Template">

<FormTemplate>

<div id="frmTemp">

<div class="frmTemp_left">

<label>Danh mục</label>

<div>

<telerik:RadComboBox ID="cbbCategory" runat="server" AppendDataBoundItems="true">

<ItemTemplate>

<div id="div1" onclick="StopPropagation(event);" >

<telerik:RadTreeView ID="trvCategory" runat="server"

DataFieldID="CategoryId"

DataFieldParentID="ParentId"

DataTextField="CateName"

DataValueField="CategoryId"

OnClientNodeClicking="nodeClicking" >

</telerik:RadTreeView>

</div>

</ItemTemplate>

<Items>

<telerik:RadComboBoxItem Text="" Value="" Selected="True"></telerik:RadComboBoxItem>

</Items>

</telerik:RadComboBox>

</div>

<label>Tên danh mục</label>

<div>

<asp:TextBox ID="txtCateName" runat="server" Text='<%# Bind("CateName") %>'></asp:TextBox>

</div>

<label>Sắp xếp</label>

<div>

<asp:TextBox ID="txtOrderBy" runat="server" Text='<%# Bind("OrderBy") %>'></asp:TextBox>

</div>

<label>Hiển thị</label>

<div>

<asp:CheckBox ID="ckbActive" runat="server" Checked='<%# ((Container is TreeListEditFormInsertItem) ? false : Eval("Active")) %>' />

</div>

<div style="padding-top: 10px;">

<asp:HiddenField ID="HiddenField2" runat="server" Value='<%# Eval("ParentId") %>' />

<asp:HiddenField ID="HiddenField1" runat="server" Value='<%# Eval("CategoryId") %>' />

<telerik:RadButton ID="btnUpdate" Text='<%# (Container is TreeListEditFormInsertItem) ? "Lưu" : "Cập nhật" %>'

runat="server" CommandName='<%# (Container is TreeListEditFormInsertItem) ? "PerformInsert" : "Update" %>'

Icon-PrimaryIconCssClass="rbOk">

</telerik:RadButton>

<telerik:RadButton ID="btnCancel" Text="Đóng" runat="server" CausesValidation="False"

CommandName="Cancel" Icon-PrimaryIconCssClass="rbCancel">

</telerik:RadButton>

</div>

</FormTemplate>

</EditFormSettings>

6 Answers, 1 is accepted

answered on 08 Apr 2013, 04:41 AM

Hello,

protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)

{

if (e.Item is GridEditFormItem && e.Item.IsInEditMode)

{

GridEditFormItem item = e.Item as GridEditFormItem;

RadComboBox cbbCategory = item.FindControl("cbbCategory") as RadComboBox;

//access your combobox here

cbbCategory.DataSource = ""; // assign datasource here

cbbCategory.DataTextField = "";

cbbCategory.DataValueField = "";

cbbCategory.DataBind();

}

Thanks,
Jayesh Goyani

answered on 08 Apr 2013, 06:28 AM

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Hi Jayesh Goyani !
I have try your solution. It's oke. But when bind data on combobox it display blank , I want to hide blank. Have u idea for it ?

I have attach image you can see it and help me thank a lot .

answered on 08 Apr 2013, 09:54 AM

Hi Jayesh Goyani !

I don't think so. You see blank because in RadTreeList1_ItemDataBound I have bind data on TreeView and I have bind data on Combobox, => We are see both. This is my code

==> RadTreeList1_ItemDataBound Event in code behind

protected void RadTreeList1_ItemDataBound(object sender, TreeListItemDataBoundEventArgs e)

{

if (e.Item is TreeListEditFormItem)

{

var editedItem = e.Item as TreeListEditFormItem;

var cbbCategory = (RadComboBox)editedItem.FindControl("cbbCategory");

var hfCategoryId = (HiddenField)editedItem.FindControl("HiddenField1");

var trvCategory = (RadTreeView)cbbCategory.Items[0].FindControl("trvCategory");

trvCategory.DataSource = _repository.SelectAllByTreeView();

trvCategory.DataBind();

trvCategory.Nodes.Insert(0, new RadTreeNode("Select Parent", "0"));

ScriptManager.RegisterClientScriptBlock(this.Page, typeof(Page), "categoryComboScript", "<script type='text/javascript'>window['comboId'] = '" + e.Item.FindControl("cbbCategory").ClientID + "';</script>", false);

if (hfCategoryId.Value != "")

{

var id = hfCategoryId.Value;

cbbCategory.DataSource = _repository.SelectAllByTreeView();

cbbCategory.DataTextField = trvCategory.DataTextField;

cbbCategory.DataValueField = trvCategory.DataValueField;

cbbCategory.DataBind();

cbbCategory.Items.Insert(0, new RadComboBoxItem("Select Parent", "0"));

cbbCategory.SelectedValue = id;

}

answered on 09 Apr 2013, 02:01 AM

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blank display is combobox. Have u solution for me ? I don't want to see blank in combobox control

I have attach an image for my problem . Thank Jayesh !