[英]Disable RequiredFieldValidator in asp.net c#
I am trying to disable a RequiredFieldValidator by radio button list value.我正在尝试通过单选按钮列表值禁用 RequiredFieldValidator。 I have it coded but it doesn't seems to be working.
我已经编码了,但它似乎不起作用。
What i have done so far:到目前为止我做了什么:
protected void radioButtonList(object sender, EventArgs e)
{
if (((RadioButtonList)dvInsertPromotion.FindControl("RadioButtonList2")).SelectedValue == "Y")
{
((RequiredFieldValidator)dvInsertPromotion.FindControl("rfvdate1")).Enabled = false;
((RequiredFieldValidator)dvInsertPromotion.FindControl("rfvdate")).Enabled = false;
this.addPromotion.Show();
}
else
{
((RequiredFieldValidator)dvInsertPromotion.FindControl("rfvdate1")).Enabled = true;
((RequiredFieldValidator)dvInsertPromotion.FindControl("rfvdate")).Enabled = true;
this.addPromotion.Show();
}
}
html: html:
<asp:RadioButtonList ID="RadioButtonList2" runat="server" ValidationGroup="addValidationGp" OnSelectedIndexChanged="radioButtonList">
<asp:ListItem Text="Yes" Value="Y"></asp:ListItem>
<asp:ListItem Text="No" Value="N" Selected></asp:ListItem>
</asp:RadioButtonList>
<asp:TextBox ID="txtPubDate" Width="75" MaxLength="10" runat="server" AutoPostBack="true" OnTextChanged="insertStartEndDateTime_SelectedIndexChanged"/>
<asp:CalendarExtender ID="CalendarExtender1" runat="server" TargetControlID="txtPubDate"
PopupPosition="Right" Format="dd/MM/yyyy" />
<asp:RequiredFieldValidator ID="rfvdate" ValidationGroup="addValidationGp" runat="server"
ControlToValidate="txtPubDate" ErrorMessage="*" Display="Dynamic" Enabled="true"
SetFocusOnError="true" /><br />
I've had the same problem in the past and the only way I was able to solve this was by making the validators invisible altogether:我过去也遇到过同样的问题,我能够解决这个问题的唯一方法是让验证器完全不可见:
((RequiredFieldValidator)dvInsertPromotion.FindControl("rfvdate1")).Visible = false;
Just don't forget to set them to visible again whenever you want to enable them.只是不要忘记在您想要启用它们时再次将它们设置为可见。
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