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[Solved] Postback not always firing wiht MarkFirstMatch

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ComboBox

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

Phil asked on 07 Apr 2009, 07:59 PM

Hi:

If I use the MarkFirstMatch feature in data entry (just typing a 1, 2 or 3) the SelectedIndexChange event does not seem to fire. If I use the drop-down, then it fires.

    
            <telerik:RadComboBox ID="classComboBox" runat="server"  
        
                Skin="Outlook" Width="90px" 
        
                MarkFirstMatch="True" AutoPostBack="True" 
        
                OnSelectedIndexChanged="classComboBox_SelectedIndexChanged" 
        
                > 
        
                <Items> 
        
                    <telerik:radcomboboxitem Value="0" Text="0 None" /> 
        
                    <telerik:radcomboboxitem Value="1" Text="1" /> 
        
                    <telerik:radcomboboxitem Value="2" Text="2" /> 
        
                    <telerik:radcomboboxitem Value="3" Text="3" /> 
        
                </Items> 
        
            </telerik:RadComboBox>

Thanks

12 Answers, 1 is accepted

answered on 14 Apr 2009, 12:44 AM

Hi:
I created a simplified demo:

    
            <%@ Page Language="C#" %> 
        
            <%@ Register assembly="Telerik.Web.UI" namespace="Telerik.Web.UI" tagprefix="telerik" %> 
        
            <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
        
            <script runat="server"> 
        
                public class cls 
        
                { 
        
                    public int cl {get ; set; } 
        
                    public int amt1 {get ; set; } 
        
                    public int amt2 { get; set; } 
        
                    public int amt3 { get; set; } 
        
                    public int totAmt { get; set; } 
        
                } 
        
                // 
        
                protected void Page_Load(object sender, EventArgs e) 
        
                { 
        
                    kysLabel.Text = Request.QueryString["Kys"]; 
        
                    if( !IsPostBack ) 
        
                    { 
        
                        Initialize(); 
        
                    } 
        
                } 
        
                public void Initialize() 
        
                { 
        
                    cls _cls = new cls{ cl = 0, amt1 = 0, amt2 = 0, amt3 = 0, totAmt = 0 }; 
        
                    List<cls> _ridList = new List<cls>(); 
        
                    _ridList.Add(_cls); 
        
                    _ridList.Add(_cls); 
        
                    _ridList.Add(_cls); 
        
                    classAddRepeater.DataSource = _ridList; 
        
                    classAddRepeater.DataBind(); 
        
                } 
        
                // 
        
                protected void classComboBox_SelectedIndexChanged(Object o, Telerik.Web.UI.RadComboBoxSelectedIndexChangedEventArgs e) 
        
                { 
        
                    int _i = 0; 
        
                    RadComboBox _classComboBox = (RadComboBox)o; 
        
                    int _class = Convert.ToInt32(_classComboBox.SelectedValue); 
        
                    if ((_class != 0)) 
        
                    { 
        
                        RepeaterItem _repeaterItem = (RepeaterItem)_classComboBox.Parent; 
        
                        TextBox _amt1 = (TextBox)_repeaterItem.FindControl("amt1TextBox"); 
        
                        TextBox _amt2 = (TextBox)_repeaterItem.FindControl("amt2TextBox"); 
        
                        TextBox _amt3 = (TextBox)_repeaterItem.FindControl("amt3TextBox"); 
        
                        if (_class == 1 ) 
        
                        { 
        
                            _amt1.Visible = true; 
        
                        } 
        
                        else 
        
                        { 
        
                            _amt1.Visible = false; 
        
                        } 
        
                        _amt2.Visible = true; 
        
                        _amt3.Visible = true; 
        
                    } 
        
                } 
        
                // 
        
            </script> 
        
            <html xmlns="http://www.w3.org/1999/xhtml"> 
        
            <head runat="server"> 
        
                <title></title> 
        
            </head> 
        
            <body> 
        
                <form id="form1" runat="server"> 
        
                    <telerik:RadScriptManager ID="RadScriptManager1" Runat="server"> 
        
                    </telerik:RadScriptManager> 
        
                    Keys: <asp:Label ID="kysLabel" runat="server" Text="0" /> 
        
                    <table> 
        
                        <thead> 
        
                        <tr> 
        
                            <th scope="col" class="GridHeader_Office2007">Class</th> 
        
                            <th scope="col" class="GridHeader_Office2007">Amt 1</th> 
        
                            <th scope="col" class="GridHeader_Office2007">Amt 2</th> 
        
                            <th scope="col" class="GridHeader_Office2007">Amt 3</th> 
        
                            <th scope="col" class="GridHeader_Office2007">Total</th> 
        
                        </tr> 
        
                        </thead> 
        
                        <asp:Repeater ID="classAddRepeater" runat="server"  
        
                            > 
        
                            <ItemTemplate> 
        
                                <tr> 
        
                                    <td> 
        
                                        <telerik:RadComboBox ID="classComboBox" runat="server"  
        
                                            Skin="Outlook" 
        
                                            MarkFirstMatch="True" 
        
                                            Width="100px" 
        
                                            SelectedValue='<%# Bind("cl") %>' 
        
                                            onselectedindexchanged="classComboBox_SelectedIndexChanged" 
        
                                            AutoPostBack="True" 
        
                                            > 
        
                                            <Items> 
        
                                                <telerik:radcomboboxitem Value="0" Text="0 Not Selected" /> 
        
                                                <telerik:radcomboboxitem Value="1" Text="1" /> 
        
                                                <telerik:radcomboboxitem Value="2" Text="2" /> 
        
                                                <telerik:radcomboboxitem Value="3" Text="3" /> 
        
                                            </Items> 
        
                                        </telerik:RadComboBox> 
        
                                    </td> 
        
                                    <td> 
        
                                        <asp:TextBox ID="amt1TextBox" runat="server" Text='<%# Bind("amt1","{0:N0}") %>' Columns="8" MaxLength="9"  Visible="false" /> 
        
                                    </td> 
        
                                    <td> 
        
                                        <asp:TextBox ID="amt2TextBox" runat="server" Text='<%# Bind("amt2","{0:N0}") %>' Columns="7" MaxLength="8"  Visible="false"  /> 
        
                                    </td> 
        
                                    <td> 
        
                                        <asp:TextBox ID="amt3TextBox" runat="server" Text='<%# Bind("amt3","{0:N0}") %>' Columns="7" MaxLength="8"  Visible="false" /> 
        
                                    </td> 
        
                                    <td> 
        
                                        <asp:TextBox ID="totAmtTextBox" runat="server" Text='<%# Bind("totAmt","{0:N0}") %>' Columns="7" MaxLength="8" Visible="True" /> 
        
                                    </td> 
        
                                </tr> 
        
                            </ItemTemplate> 
        
                        </asp:Repeater> 
        
                    </table> 
        
                </form> 
        
            </body> 
        
            </html>

but it worked OK w/o the RadWindows, so could it be the windows?
Phil

answered on 16 Apr 2009, 11:29 AM

Hello Phil,

Thank you for providing the code.

I used it in a sample page with the both your version of RadComboBox - 2008.3.1314.35 - and the latest official - 2009.1.402.35 - and it worked normally.

Postbacks fired when an Item was selected by clicking in the drop down and using keyboard only.

Could you specify exactly how the issue you are experiencing at your side could be reproduced with the provided code snippet?

Sincerely yours,
Simon
the Telerik team

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