How to enabled textbox at runtime in gridview

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I am using Gridview which has Combobox,Textbox using Templete Field

When I select the Combobox value is 'DR' the Textbox will be Enabled False and Combobox Value is 'CR' It will be Enabled True.

How to do it? Please help me...

I am using this code but no action occured

C#

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
           int i=e.Row.RowIndex;
            string _SelectedValue = ((DropDownList)GridView1.Rows[i].FindControl("cmbtype")).SelectedValue.ToLower();
            if (_SelectedValue == "DR".ToLower())
            {
                ((TextBox)GridView1.Rows[i].FindControl("txtdebit")).Enabled = false;
                ((TextBox)GridView1.Rows[i].FindControl("txtcredit")).Enabled = true;
            }
            else
            {
                ((TextBox)GridView1.Rows[i].FindControl("txtdebit")).Enabled = true;
                ((TextBox)GridView1.Rows[i].FindControl("txtcredit")).Enabled = false;
            }


    }

This event is calling before rowcreated. So Which event is calling after RowDatabound please help me

Posted 19-Jun-12 21:53pm

devausha

Updated 19-Jun-12 22:43pm

v4

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Comments

Prosan 20-Jun-12 4:57am

you add js on combox on change event than it will work.

devausha 20-Jun-12 4:59am

I didn't know how to do it? Please help me

It may be attributes.add() funtion to give rowdatabound event. Then how to write js

Prosan 20-Jun-12 5:22am

look my answer i have give one simple example convert it to your requirement.

3 solutions

Solution 1

In GridView an event is there OnRowDataBound .Inside that event write

C#

If(COmboBox.Selected == 'DR')
{
TextBox1.Enable = false;
}
else
{
TextBox1.Enable = true;
}

Posted 19-Jun-12 22:02pm

bhagirathimfs

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AshishChaudha · Accepted Answer · 2012-06-19T22:33:00

Solution 2

In a gridview when we use controls and want to perform any action then firstly we have to find that control.

So preferably use findcontrol to find the dropdown and textbox in a gridview because you have to use selectedindexchange for execution of the conditon and also find your textbox in a gridview..

Posted 19-Jun-12 22:33pm

AshishChaudha

Updated 19-Jun-12 22:36pm

v3

Prosan · Accepted Answer · 2012-06-19T23:20:00

please look this simple example

C#

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
       {
            int i = e.Row.RowIndex;
            DropDownList ddl = (DropDownList)e.Row.FindControl("ddl");
            TextBox tx = (TextBox)e.Row.FindControl("txt");

// add these line than it will solve your current problem 

            if (ddl.SelectedValue == "DR".ToLower())
                tx.Enabled = false;
            else
                tx.Enabled = true;
//----------------------------------------------
            ddl.Attributes.Add("onchange", "if (" + ddl.ClientID + ".value=='dr'){" + tx.ClientID + ".disabled=true;}else{" + tx.ClientID + ".disabled=false;} "); 
        }
    }