Completed
Last Updated: 12 Mar 2024 10:11 by ADMIN
Release 2024 Q2
Created by: miksh
Comments: 0
Category: MultiColumnComboBox
Type: Bug Report
0

When search dropdown is open in MultiColumnComboBox and you scroll the page (e.g. by mouse wheel) the dropdown is immediately closed which is quite inconvenient.

Both Combobox and DropDownList keep the dropdown opened when you are scrolling the page.

Could you fix it?
Any temp workaround?

Unplanned
Last Updated: 29 Jan 2024 16:16 by Wayne
Created by: Wayne
Comments: 3
Category: MultiColumnComboBox
Type: Bug Report
0

(copy of Selection bug MultiColumnComboBox in UI for ASP.NET AJAX | Telerik Forums)

Steps:

1. Go to Telerik Web UI MultiColumnComboBox WebForms MultiColumnComboBox Overview Demo | Telerik UI for ASP.NET AJAX

2. Enter "ha" select some records

3. Hover mouse over any of dropdown records

4. Click out of the dropdown to close it

5. Textbox keeps "ha" but the message below reads that You have selected Thomas Hardy whose ID is AROUT. They are a Sales Representative at Around the Horn however, nothing has been selected.

Is it expected ?
If it's a bug and having a long cycle to fixing bugs could you recommend any workaround?

Unplanned
Last Updated: 12 Jun 2023 09:47 by ADMIN
Created by: Russ
Comments: 1
Category: MultiColumnComboBox
Type: Bug Report
0

Code to replicate the issue:

<telerik:RadMultiColumnComboBox ID="RadMultiColumnComboBox1" runat="server">
</telerik:RadMultiColumnComboBox>
<telerik:RadToolTip runat="server" ID="RadToolTip2" Title="Company Short Name" TargetControlID="RadMultiColumnComboBox1" ShowEvent="OnFocus" Width="200px" Position="MiddleRight"> Tooltip Content </telerik:RadToolTip>

Next, focus on the MultiColumnComboBox, but the ToolTip won't show.

Unplanned
Last Updated: 01 Mar 2023 12:04 by Chandu
Created by: Chandu
Comments: 0
Category: MultiColumnComboBox
Type: Bug Report
1
GroupTemplate is not working when RadMultiColumnComboBox is bound to a RadClientDataSource.
Unplanned
Last Updated: 21 Oct 2020 15:42 by ADMIN
Created by: Milind
Comments: 4
Category: MultiColumnComboBox
Type: Feature Request
1

Hello,

 

Load on demand feature is requested in multicolumn combobox

 

Thanks,

 

Milind Shevade

Completed
Last Updated: 29 May 2020 15:43 by ADMIN
Created by: Alem
Comments: 2
Category: MultiColumnComboBox
Type: Feature Request
0
We have just upgraded to the latest asp.net ajax version and excited about the new control 'RadMultiColumnComboBox', but we could not figure out how we can allow multiple selections.

Please let us know

Thanks,
Completed
Last Updated: 08 May 2020 15:49 by ADMIN
Release R2 2020

Currently, the RadMultiColumnComboBox has smaller height than the AutoCompleteBox or the RadComboBox for example. 

A possible workaround can be using the following styles: 

<style>
    .RadMultiColumnComboBox .k-dropdown-wrap {
        padding: 4px 12px;
    }

    .RadMultiColumnComboBox .k-select {
        width: 1.42857143em;
        height: 1.42857143em;
        position: absolute;
        box-sizing: content-box;
        top: 0;
        bottom: 0;
        right: 0;
        left: auto;
        padding: 6px;
    }
</style>

Unplanned
Last Updated: 04 Mar 2020 12:47 by ADMIN

When items with different values have the same text, a postback is not triggered when selecting another item with the same text as the current selection. The workaround is to place the following script under the ScriptManager:

Telerik.Web.UI.RadMultiColumnComboBox.prototype._shouldPostbackOnChange = function myfunction() {
    return true;
}

Reproduction code:

<telerik:RadMultiColumnComboBox ID="RadMultiColumnComboBox1" DataKeyNames="Additional" runat="server" DropDownWidth="Auto" AutoPostBack="true" >
    <ClientEvents OnSelect="OnSelect" />
    <ColumnsCollection>
        <%--<telerik:MultiColumnComboBoxColumn Field="ID"></telerik:MultiColumnComboBoxColumn>--%>
        <telerik:MultiColumnComboBoxColumn Field="Name"></telerik:MultiColumnComboBoxColumn>
        <telerik:MultiColumnComboBoxColumn Field="Additional"></telerik:MultiColumnComboBoxColumn>
    </ColumnsCollection>
</telerik:RadMultiColumnComboBox>
<script>
    function OnSelect(sender, args) {
        //alert("selection changed");
    }
    // Workaround
    Telerik.Web.UI.RadMultiColumnComboBox.prototype._shouldPostbackOnChange = function myfunction() {
        return true;
    }
</script>

public class MyClass
{
    public int ID { get; set; }
    public string Name { get; set; }
    public string Additional { get; set; }
}
protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack)
    {
        RadMultiColumnComboBox1.DataSource = Enumerable.Range(1, 20).Select(x => new MyClass()
        {
            ID = x,
            Name = "Same Item text" ,
            Additional = "DataKey#" + x
        });
        RadMultiColumnComboBox1.DataTextField = "Name";
        RadMultiColumnComboBox1.DataValueField = "ID";
        RadMultiColumnComboBox1.DataBind();
    }
}

 

 

Unplanned
Last Updated: 03 Jan 2020 15:15 by ADMIN
Created by: Daniel
Comments: 1
Category: MultiColumnComboBox
Type: Feature Request
0
What is the best approach to AutoSize the contents of the columns in a RadMultiColumnComboBox?  Is there a method or property I can use?
Unplanned
Last Updated: 28 Nov 2019 12:33 by ADMIN
Created by: Jochen
Comments: 0
Category: MultiColumnComboBox
Type: Feature Request
1

Currently, the only example for setting up virtualization is with .svc service.

Completed
Last Updated: 13 May 2019 14:00 by ADMIN
Created by: Daniel
Comments: 4
Category: MultiColumnComboBox
Type: Feature Request
3
The new MultiColumnComboBox control does not have any server side events.  Can you provide the same server side event that you have for the ComboBox? 
Unplanned
Last Updated: 30 Apr 2019 19:27 by ADMIN
Currently, to make the MultiColumnComboBox control work in an EditTemplate of a Grid in Batch EditMode, custom implementation is needed as explained in Batch Editing Working With Templates and demonstrated here: Show short date, edit full date with batch editing