FormView ,LoadTemplate, how to get control by FindControl

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A FormView question:

i user :

C#

FormView1.ItemTemplate = LoadTemplate("FormView.ascx");

FormView.ascx:

<asp:textbox id="textbox" runat="server" text="This is a test" xmlns:asp="#unknown"></asp:textbox>

C#

protected void FormView1_DataBound(object sender, EventArgs e)
{
  // how to get thi control "textbox"  by FindControl?

}

thank you

Posted 19-May-10 19:42pm

lifanvc

Updated 20-May-10 8:16am

Jitendra Zaa

v2

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6 solutions

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lifanvc · Answer 1 · 2010-05-20T07:58:00

i write a function to find a control in formview:

#region       
        protected Control GetControlOfFormView(FormView fv, string strControlID)
        {
            Control ctl = new Control();
            FormViewRow fvr = fv.Row;
            TableCell tc = new TableCell();
            Control CellCtl = new Control();
            int nCell,nCellCtl;
            int j, k;
            nCell = fvr.Cells.Count;
            for (j = 0; j < nCell; j++)
            {
                tc = fvr.Cells[j];
                nCellCtl = tc.Controls.Count;
                for (k = 0; k < nCellCtl; k++)
                {
                    CellCtl = tc.Controls[k];
                    ctl = CellCtl.FindControl(strControlID);
                    if (ctl != null)
                    {
                        k = nCellCtl;
                        j = nCell;
                    }
                }
            }
            return ctl;
        }
        #endregion

use it :

protected void FormView1_DataBound(object sender, EventArgs e)
{
   DataRowView row = (DataRowView)FormView1.DataItem;
   TextBox tb = null;

   tb = (TextBox)GetControlOfFormView(FormView1, "textbox");
   tb.Text = row["Bsf_FormID"].ToString();
}

thanks erveryone, if have good idea ,i want to know how you do it.thanks

kumardevarapalli · Answer 2 · 2010-05-19T21:06:00

Solution 1

The sender is nothing but the Formview control it self just loop through the items and get the text box

Regards
Vinay

Posted 19-May-10 21:06pm

kumardevarapalli

lifanvc · Answer 3 · 2010-05-19T21:40:00

Solution 2

I want to set a value to id="textbox" ，how to do ?

Posted 19-May-10 21:40pm

lifanvc

Comments

kumardevarapalli 20-May-10 5:51am

after finding the text box control just parse it like the below code

Dim txtNew As New TextBox
and assign the text box what u have found and set the value

Regards
Vinay

lifanvc · Answer 4 · 2010-05-20T00:04:00

Solution 3

the question is that I don't know how to get the textbox control, thank you for your help

Posted 20-May-10 0:04am

lifanvc

Comments

kumardevarapalli 20-May-10 6:33am

hay the sender itself is the formview rite....just loop through the formview items and find the text box then assign the value

kumardevarapalli 20-May-10 6:45am

sory due i am working on it if got i let u no

kumardevarapalli · Answer 5 · 2010-05-20T00:55:00

Solution 4

Check this code

VB

Dim frm As FormView = sender
       If (frm.DataItem IsNot Nothing) Then
           Dim txt As TextBox = frm.Controls.Item(0).FindControl("TextBox1")
           txt.Text = "Test" & frm.DataItemIndex
       End If

Posted 20-May-10 0:55am

kumardevarapalli

lifanvc · Answer 6 · 2010-05-20T01:34:00

kumardevarapalli,thank you for your help.

it's wrong :

VB

Dim txt As TextBox = frm.Controls.Item(0).FindControl("TextBox1")

err message:

VB

System.Web.UI.ControlCollection' does not contain a definition for 'Item' and no extension method 'Item' accepting a first argument of type 'System.Web.UI.ControlCollection' could be found (are you missing a using directive or an assembly reference?)

need your help ,thanks

FormView ,LoadTemplate, how to get control by FindControl

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