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I have to compare 2 values which are the text property of 2 textbox controls on my .aspx form.
Using Compare validator does not enough for, I have to use some functions like substring.
As far as I know, the Compare validator does not allow to use substring.
Using Custom validator and handle it’s serer-side “ServerValidate” event, as you know, It gives 2 arguments (source and args), how can I compare a text property of other control in this function?
If I can not, what is your solution?
In the “ServerValidate” event, you can access the controls text property
if(txtbox1.Text!=textbox2.Text)
{
//you can return what you want here…..
}