Cannot have multiple items selected in a DropDownList.

Hello

Expertise .. Plse help me ...

during GridView SelectedIndex_Changed event .. i select Drop down item. then Erorr Occured below...

Cannot have multiple items selected in a DropDownList.

Here is my code ...

protected void dgdDeedDetail_SelectedIndexChanged(object sender, EventArgs e)
    {
        ddlDeedPaper.ClearSelection();
        ddlDeedPaper.Text = dgdDeedDetail.SelectedItem.Cells[12].Text;

}

Re: Cannot have multiple items selected in a DropDownList.

Drop down list is not designed to allow multiple selection
try:

ddlDeedPaper.SelectedText = dgdDeedDetail.SelectedItem.Cells[12].Text;

Re: Cannot have multiple items selected in a DropDownList.

Hi,

below line is solved your prob..

DropDownList.Items.Clear()

for details....

http://geekswithblogs.net/shahed/archive/2008/08/23/124652.aspx

Thanks...

Re: Cannot have multiple items selected in a DropDownList.

Thanks for Reply...

Its getting error ...

------------------------------------

On completion of page load, the page reads: "System.Web.HttpException: Cannot have multiple items selected in a DropDownList."...

Trace file....

HttpException (0x80004005): Cannot have multiple items selected in a DropDownList.]
   System.Web.UI.WebControls.DropDownList.VerifyMultiSelect() +107
   System.Web.UI.WebControls.ListControl.RenderContents(HtmlTextWriter writer) +1774854
   System.Web.UI.WebControls.WebControl.Render(HtmlTextWriter writer) +29
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +25
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +121
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +22
   ASP.consultants_profile_main_aspx.__RenderContent1(HtmlTextWriter __w, Control parameterContainer) in C:\Inetpub\wwwroot\Quincy\Consultants\Profile_Main.aspx:28
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +2065851
   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +24
   System.Web.UI.Control.Render(HtmlTextWriter writer) +7
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +25
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +121
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +22
   ASP.consultants_consultant_master.__RendertdContent(HtmlTextWriter __w, Control parameterContainer) in C:\Inetpub\wwwroot\Quincy\Consultants\Consultant.master:61
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +2065851
   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +24
   System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer) +29
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +25
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +121
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +22
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +130
   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +24
   System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter writer) +59
   System.Web.UI.HtmlControls.HtmlForm.Render(HtmlTextWriter output) +68
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +25
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +121
   System.Web.UI.HtmlControls.HtmlForm.RenderControl(HtmlTextWriter writer) +37
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +130
   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +24
   System.Web.UI.Control.Render(HtmlTextWriter writer) +7
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +25
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +121
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +22
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +130
   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +24
   System.Web.UI.Page.Render(HtmlTextWriter writer) +26
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +25
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +121
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +22
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1896