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insertcommand in a grid getting the name of a dropdown

Posted on 2013-01-23
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Last Modified: 2013-01-28
I am trying to insert the selected value of a dropdown box into the database and I cant get it - anyone know?

            string sqlStr = "";
            int mgrid = user.UserID;
            int selecteduser;
            Control myControl = FindControl("ddlusers");
            if (myControl != null || Convert.ToString(myControl) != "--Please Select--")
            {

                selecteduser = myControl.SelectedValue; <-- selected value doesnot exist 
                
            }
            sqlStr += "Insert Into ManagerStaff (mgruseruid,staffuseruid) Values (mgrid,selecteduser) ";
            using (SqlConnection conn = new SqlConnection(conStr))
            using (SqlCommand cmd = new SqlCommand(sqlStr, conn))
            {
                cmd.CommandType = System.Data.CommandType.Text;
                cmd.Connection.Open();
                cmd.ExecuteNonQuery();
            }

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Question by:r3nder
  • 5
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8 Comments
 
LVL 9

Expert Comment

by:psgindiana
ID: 38812092
Error messages, or just no results?
0
 
LVL 6

Author Comment

by:r3nder
ID: 38812103
'System.Web.UI.Control' does not contain a definition for 'SelectedValue' and no extension method 'SelectedValue' accepting a first argument of type 'System.Web.UI.Control' could be found (are you missing a using directive or an assembly reference?)
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Expert Comment

by:psgindiana
ID: 38812145
Try
selecteduser = ((DropDownList)myControl).SelectedValue.ToString();

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This will cast the control as a DropDownList, as well as return a string you can use.
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LVL 6

Author Comment

by:r3nder
ID: 38812192
"Object reference not set to an instance of an object."
0
 
LVL 6

Author Comment

by:r3nder
ID: 38812199
here is the asp
 <Columns>
                     <telerik:GridDropDownColumn UniqueName="ddlusers" DataSourceID="UserDD" ListValueField="useruid" ListTextField="username" 
                      HeaderText="Users" Visible="false">
                     </telerik:GridDropDownColumn>

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Assisted Solution

by:psgindiana
psgindiana earned 500 total points
ID: 38812258
On what line? If you debug, does it even get to line 8 of your original post?

This is not a "DropDownList" it is a telerik specific control called "GridDropDownColumn". You can try replacing "DropDownList" with "GridDropDownColumn" in the cast. Not sure that's your biggest problem, though. Still not sure if your findcontrol is even returning a control.
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Accepted Solution

by:
r3nder earned 0 total points
ID: 38812330
GridEditableItem item = e.Item as GridEditableItem;

                selecteduser = Convert.ToInt32((item["ddlusers"].Controls[0] as RadComboBox).SelectedValue);
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Author Closing Comment

by:r3nder
ID: 38826198
Thanks for the info - with your comment I was able to figure it out psgindiana
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