Solved

'System.Web.UI.WebControls.DropDownList' does not contain a definition for 'FindStringExact'

Posted on 2014-03-17
4
835 Views
Last Modified: 2014-03-17
I am getting the following error:
'System.Web.UI.WebControls.DropDownList' does not contain a definition for 'FindStringExact' and no extension method 'FindStringExact' accepting a first argument of type 'System.Web.UI.WebControls.DropDownList'
could be found.
int intCboIndex = cboServers.FindStringExact(LocalServerName);// error here
Thanks in advance for any help given.
Below is the complete code for clarity.
protected void btnSearch_Click(object sender, EventArgs e)
    {
        //Cursor = Cursors.WaitCursor;
        //get a DataTable of the servers
        DataTable dtList = SMOUtilities.ListAllKnownInstances();
        foreach (DataRow dr in dtList.Rows)
        {
            String ServerName;
            ServerName = dr["Server"].ToString();
            if (!String.IsNullOrEmpty(dr["Instance"].ToString()))
            {
                ServerName += @"\" + dr["Instance"].ToString();
            }
            if (cboServers.Items.IndexOf(ServerName) < 0)// error here
            {
                cboServers.Items.Add(ServerName);
            }
        }
        //  By default select the local server
        Server LocalServer = new Server();
        String LocalServerName = LocalServer.Name;
        if (!String.IsNullOrEmpty(LocalServer.InstanceName))
        {
            LocalServerName += @"\" + LocalServer.InstanceName;
        }
        int intCboIndex = cboServers.FindStringExact(LocalServerName);// error here
        if (intCboIndex >= 0)
        {
            cboServers.SelectedIndex = intCboIndex;
        }
        //Cursor = Cursors.Default;
    }

Open in new window

0
Comment
Question by:homeshopper
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 
LVL 44

Expert Comment

by:AndyAinscow
ID: 39933990
Basically that means the function does not exist.
You need to use a different function.
0
 
LVL 52

Accepted Solution

by:
Carl Tawn earned 500 total points
ID: 39934006
The Items collection support FindByText and FindByValue methods. But you need to chain a couple of methods to get the index:
int indexCboIndex = cboServers.Items.IndexOf(cboServers.Items.FindByText(LocalServerName));

Open in new window

For info: The FindStringExact method applies to the ComboBox control in WinForms development, it isn't valid for the DropDownList in ASP.Net.
0
 

Author Comment

by:homeshopper
ID: 39934079
Thanks, it now all works.
0
 

Author Closing Comment

by:homeshopper
ID: 39934082
I thought it might be something to do with the conversion of winforms to asp.net
I did not know what other function could used. Thank you for the solution.
0

Featured Post

Secure Your Active Directory - April 20, 2017

Active Directory plays a critical role in your company’s IT infrastructure and keeping it secure in today’s hacker-infested world is a must.
Microsoft published 300+ pages of guidance, but who has the time, money, and resources to implement? Register now to find an easier way.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

A quick way to get a menu to work on our website, is using the Menu control and assign it to a web.sitemap using SiteMapDataSource. Example of web.sitemap file: (CODE) Sample code to add to the page menu: (CODE) Running the application, we wi…
It was really hard time for me to get the understanding of Delegates in C#. I went through many websites and articles but I found them very clumsy. After going through those sites, I noted down the points in a easy way so here I am sharing that unde…
The Email Laundry PDF encryption service allows companies to send confidential encrypted  emails to anybody. The PDF document can also contain attachments that are embedded in the encrypted PDF. The password is randomly generated by The Email Laundr…

730 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question