Validation By Control ASP.Net

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<%@ Page Language=VB Debug=true %>


Creating a Basic ValidationSummary Control




    id="vsAllErrors" 
    showsummary="True"
    runat="server"
    headertext="For these reasons, your data could not be processed:"
    displaymode="list"
    font-name="Comic Sans MS" 
    font-size="12"
/>


Enter Your Name:

    id="txtName" 
    runat=server 
/>
    id="rfvName"
    controltovalidate="txtName"
    errormessage="The name field is required!"
    runat=server
>
*



Please enter a Date:

    id="txtDate" 
    runat=server 
/>
    id="cvCheckDate" 
    controltovalidate="txtDate" 
    operator="DataTypeCheck" 
    type="Date" 
    errormessage="The date field must be a date!"
    runat="server"
>
*




    id="butOK"
    text="OK"
    type="Submit"
    runat="server"
/>