Go through Each item in a grid

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I am working on a grid and I want to add some validations ,
I have in each column two check boxes and one text box , i use for each loap to go through each column ,Mainly I want to check if the check box is clicked and there is data inside the text box , the webpage will display a message to the user and when the check box is clicked and the text box has data :"thank you for your decisions" and if there is no data inside the text box show message "you have to enter data inside text box" the problem here is it applies this conditions at the first time only meaning if there is no data insider the text box it displays :you have to enter data inside text box: but in the second time it displays "thank you for your decisions"

Posted 9-Apr-14 2:21am

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sankarsan parida · Answer 1 · 2014-04-09T02:38:00

Foreach(GridViewRow row in GridView1.Rows)
{
//Giving one demo
TextBox txt=(TextBox)row.FindControl("textBoxID");
if (txt.Text=="")
{
txt.ToolTip="you have to enter data inside text box";
txt.BorderColor=System.Drawing.Color.Red;
}
else {
txt.ToolTip="thank you for your decisions";
txt.BorderColor=System.Drawing.Color.Gray;  
}
}