Validation in CalendarExtender

Example

Adding CompareValidator

<asp:CompareValidator ID="CompareValidator1" runat="server"

                ControlToValidate="TextBox1" Display="Dynamic" ErrorMessage="Invalid Date"

                Operator="DataTypeCheck" Type="Date">

</asp:CompareValidator>

<cc1:ValidatorCalloutExtender ID="CompareValidator1_ValidatorCalloutExtender"

                runat="server" Enabled="True" TargetControlID="CompareValidator1">

</cc1:ValidatorCalloutExtender>

Adding RangeValidator – We will restrict the user to select a date range starting from today to 15 days from now.

<asp:RangeValidator ID="RangeValidator1" runat="server"

                ControlToValidate="TextBox1" ErrorMessage="RangeValidator"

                Type="Date">

</asp:RangeValidator>

<cc1:ValidatorCalloutExtender ID="RangeValidator1_ValidatorCalloutExtender"

                runat="server" Enabled="True" TargetControlID="RangeValidator1">

</cc1:ValidatorCalloutExtender>

 

In the code behind of your page, add this code

C#

    protected void Page_Load(object sender, EventArgs e)

    {

        RangeValidator1.MinimumValue = System.DateTime.Now.ToShortDateString();

        RangeValidator1.MaximumValue = System.DateTime.Now.AddDays(15).ToShortDateString();

    }

VB.NET

      Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)

            RangeValidator1.MinimumValue = System.DateTime.Now.ToShortDateString()

            RangeValidator1.MaximumValue = System.DateTime.Now.AddDays(15).ToShortDateString()

      End Sub