how to validation the text box value ,nt edit more than bind

Question

Hi am read value from SQL table in one text box depend upon the username its value will be different.so if i trying to edit it nt allow me to enter more than the read value . ex: user name: A B C D amount: 700 600 200 750 i bind the value amount in the text box as per the user name,so if edit it,it not allow more than 700. how to do that? please tell me code . username: A text box 1: 700 (EDIT) by clicking Edit i Enter New value in the text box,So that Value s not more than 700,as per fr B is not more than 600.... how to bind and edit ,store value in string and check the condition... plz help me tell clear code

Nilesh Sawardekar · Answer

Lets e.g., you have textbox with value 700 and name txt700 when you fetch its value from database update its .tag property too with this 700. txt700.tag=700 and then compare it in lostfocus event of same tetbox. private void txt700_LostFocus( object sender, System.EventArgs e) { if (val(txt700.txt) > val(txt700.tag)) { //your message } }

Vasanth Natarajan · Answer

Hi i understood from the above code, if you not solve this let me know frnd.. int intEditedvalue=Concert.ToInt32(txtboxA.Text); int intnewvalue=0; if(intEditedvalue>intnewvalue) { textboxA.Text=newvalue.ToString(); } else { textboxA.Text=intEditedvalue; }