Index Change event for Combobox of gridtemplateColumn in Telerik

问题

I can write a code. In this I can take a Template Column & in this I build a RadCombobox. When it's Index changed I want to affect the below text box. Link the selected value of the Combo box is set as Text on Below TextBox. Combo Box & Text Box are different Controls of Different Template Column.

I can Write Control of Combo box like this :

<telerik:RadComboBox ID="cmbGID" runat="server" DataSourceID="SqlDataSource8" DataTextField="Name"
                        DataValueField="ID" AutoPostBack="True" OnSelectedIndexChanged="cmbGID_SelectedIndexChanged">

But I don't know the parameters of this event like this :

protected void cmbGID_SelectedIndexChanged()
{
       //code...
}

Any one plz tell me that parameters & tell me is that possible to set txtValue.Text = cmbGID.SelectedValue.ToString()...???

回答1:

I got the solution of this problem...

This is working by following code :

protected void cmbGrp_SelectedIndexChanged(object sender, RadComboBoxSelectedIndexChangedEventArgs e)
{
    RadComboBox ddlCtrl = sender as RadComboBox;
    GridEditableItem dataItem = ddlCtrl.NamingContainer as GridEditableItem;
    RadComboBox cmbCtrl = dataItem.FindControl("cmbSetNo") as RadComboBox;
    RadTextBox txtCtrl = dataItem.FindControl("cmbSetNo") as RadTextBox;
    txtCtrl.Text = ddlctrl.SelectedValue.ToString();

    string query = "QUERY";

    ds.Clear();
    ds = c.getDataSet(query);

    cmbCtrl.DataSource = ds.Tables[0];
    cmbCtrl.DataTextField = "NO";
    cmbCtrl.DataValueField = "RecordID";
    cmbCtrl.DataBind();
}

回答2:

Something like this should work:

protected void vmbGID_SelectedIndexChanged(object sender, EventArgs e)
{
    var ddlCtrl = sender as RadComboBox;
    if (ddlCtrl != null)
    {
        var dataItem = ddlCtrl.Parent as GridDataItem;
        if (dataItem != null)
        {
            var txtCtrl = dataItem.FindControl("txtValue") as RadTextBox;
            if (txtCtrl != null)
            {
                txtCtrl.Text = ddlCtrl.SelectedValue;
            }
        }
    }
}

来源：https://stackoverflow.com/questions/10034024/index-change-event-for-combobox-of-gridtemplatecolumn-in-telerik