Auto complete in datagridview

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Dear Sir,
please me to solve my problem..thanks in advance..
i have a textbox and by clicking the textbox a datagrid will display. grid contain two columns namely UserName and Role. if i click in a cell or row the selected UserName will displayed in the textbox. it works fine.. my problem is if i type a letter in textbox, the datagrid should populate matching UserName that is auto complete...i tried alot..but didnt get any solutions...plzz plz help me.. :(
am working with C#.net

What I have tried:

Dear Sir,
please me to solve my problem..thanks in advance..
i have a textbox and by clicking the textbox a datagrid will display. grid contain two columns namely UserName and Role. if i click in a cell or row the selected UserName will displayed in the textbox. it works fine.. my problem is if i type a letter in textbox, the datagrid should populate matching UserName that is auto complete...i tried alot..but didnt get any solutions...plzz plz help me.. :(
am working with C#.net

Posted 28-Mar-16 0:53am

Member 12386982

Updated 28-Mar-16 20:53pm

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CHill60 28-Mar-16 7:23am

Use the Improve question link to post the code that you have tried and explain why it isn't working.
And please don't use text-speak, many people will ignore questions that contain "plzz plz" so you are limiting the number of members who can help

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Vikram Dalwadiya · Answer 1 · 2016-03-28T03:29:00

Solution 1

http://www.aspdotnet-suresh.com/2012/09/9-top-ajax-jquery-autocomplete.html[^]

http://www.aspdotnet-suresh.com/2012/09/9-top-ajax-jquery-autocomplete.html[^]

AutoComplete using JQuery Ajax and Asp.Net WCF Service – C# and Vb.Net[^]

Posted 28-Mar-16 3:29am

Vikram Dalwadiya

Member 12386982 · Answer 2 · 2016-03-28T20:53:00

am using windows application..
i use below code

C#

private void txtCustmrName_TextChanged(object sender, EventArgs e)
        {
            int txtLen = this.txtCustmrName.Text.Length;
            // --- DataGridView Loop
            string unme;
            for (int myRow = 0; myRow <= dguser.Rows.Count - 1; myRow++)
            {
                unme=dguser.Rows[myRow].Cells[1].Value.ToString();
               dguser.Rows[myRow].Visible = false;
                if (unme.Length < txtLen)
                {
                    continue;
                }
                //if ((DataGridView(0, myRow).Value.ToString.Length < txtLen))
                //{
                //    continue;
                //}
                else
                {
                    if (unme.Substring(0, txtLen) == txtCustmrName.Text)
                    {
                        dguser.Rows[myRow].Visible = true;
                    }
                }
            }

it shows

"Row associated with the currency manager's position cannot be made invisible."
this error in "unme=dguser.Rows[myRow].Cells[1].Value.ToString();" this code..