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Code Snippet For How To Apply Validators In ASP.NET


As in my previous article i already mentioned how many types of validators in ASP.NET.

Today i will provide the code for applying validators in server control.

You just type the following code in the start and end tag of the body.

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<form id="form1" runat="server">
<div>

Name
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server"
ControlToValidate="TextBox1" ErrorMessage="RequiredFieldValidator" Text='<img src="caution.png" width="15" height="15"> Empty Name Field'></asp:RequiredFieldValidator>
<br />
Password
<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server"
ErrorMessage="RequiredFieldValidator"
Text='<img src="caution.png" width="15" height="15"> Empty Password Field'
ControlToValidate="TextBox2"><img height="15" src="caution.png" width="15">
Empty Password Field</img></asp:RequiredFieldValidator>
<br />
Confirm Password
<asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator6" runat="server"
ControlToValidate="TextBox3" ErrorMessage="RequiredFieldValidator" Text='<img src="caution.png" width="15" height="15"> Empty Password Field'></asp:RequiredFieldValidator>
<asp:CompareValidator ID="CompareValidator1" runat="server"
ErrorMessage="CompareValidator"
Text='<img src="caution.png" width="15" height="15"> Password Does Not Match'
ControlToCompare="TextBox2" ControlToValidate="TextBox3"><img height="15"
src="caution.png" width="15"> Password Does Not Match</img></asp:CompareValidator>
<br />
Age
<asp:TextBox ID="TextBox4" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server"
ErrorMessage="RequiredFieldValidator"
Text='<img src="caution.png" width="15" height="15"> Empty Age Field'
ControlToValidate="TextBox4"><img height="15" src="caution.png" width="15">
Empty Age Field</img></asp:RequiredFieldValidator>
<asp:CompareValidator ID="CompareValidator2" runat="server"
ErrorMessage="CompareValidator"
Text='<img src="caution.png" width="15" height="15"> Age Must Be Greater Than 18'
ControlToValidate="TextBox4" Operator="GreaterThan" Type="Integer"
ValueToCompare="18"><img height="15" src="caution.png" width="15"> Age Must
Be Greater Than 18</img></asp:CompareValidator>
<br />
Bonus
<asp:TextBox ID="TextBox5" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator5" runat="server"
ErrorMessage="RequiredFieldValidator"
Text='<img src="caution.png" width="15" height="15"> Empty Bonus Field'
ControlToValidate="TextBox5"><img height="15" src="caution.png" width="15">
Empty Bonus Field</img></asp:RequiredFieldValidator>
<asp:RangeValidator ID="RangeValidator1" runat="server"
ErrorMessage="RangeValidator"
Text='<img src="caution.png" width="15" height="15"> Bonus Must Between 500 To 1000'
ControlToValidate="TextBox5" MaximumValue="1000" MinimumValue="500"
Type="Integer"><img height="15" src="caution.png" width="15"> Bonus Must
Between 500 To 1000</img></asp:RangeValidator>
<br />
Email-Id
<asp:TextBox ID="TextBox6" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator4" runat="server"
ErrorMessage="RequiredFieldValidator"
Text='<img src="caution.png" width="15" height="15"> Empty Email-Id Field'
ControlToValidate="TextBox6"><img height="15" src="caution.png" width="15">
Empty Email-Id Field</img></asp:RequiredFieldValidator>
<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server"
ErrorMessage="RegularExpressionValidator"
Text='<img src="caution.png" width="15" height="15"> Invalid Email Format'
ControlToValidate="TextBox6"
ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"><img
height="15" src="caution.png" width="15"> Invalid Email Format</img></asp:RegularExpressionValidator>
<br />
<br />
<br />

<asp:Button ID="Button1" runat="server" Text="Submit" />

</div>
</form>

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