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    <pre><code>credit goes to ahaliav fox http://stackoverflow.com/questions/10566599/how-to-control-asp-net-validator-controls-client-side-validation gridview: &lt;asp:GridView ID="gv" runat="server" AutoGenerateColumns="False" DataKeyNames="Id" OnRowDataBound="gv_RowDataBound"&gt; &lt;Columns&gt; &lt;asp:BoundField DataField="ID" ControlStyle-Width="250px" HeaderText="ID" SortExpression="ID" /&gt; &lt;asp:BoundField DataField="FirstName" ControlStyle-Width="250px" HeaderText="FirstName" SortExpression="FirstName" /&gt; &lt;asp:BoundField DataField="LastName" ControlStyle-Width="250px" HeaderText="LastName" SortExpression="LastName" /&gt; &lt;asp:TemplateField&gt; &lt;ItemTemplate&gt; &lt;asp:CheckBox ID="checkbox1" runat="server" /&gt; &lt;asp:DropDownList ID="drpPaymentMethod" runat="server"&gt; &lt;asp:ListItem Value="-1"&gt;----&lt;/asp:ListItem&gt; &lt;asp:ListItem Value="0"&gt;Month&lt;/asp:ListItem&gt; &lt;asp:ListItem Value="1"&gt;At End&lt;/asp:ListItem&gt; &lt;asp:ListItem Value="2"&gt;At Travel&lt;/asp:ListItem&gt; &lt;/asp:DropDownList&gt; &lt;asp:RequiredFieldValidator ID="rfv" InitialValue="-1" ControlToValidate="drpPaymentMethod" Enabled="false" Display="Static" runat="server" ErrorMessage="RequiredFieldValidator"&gt;&lt;/asp:RequiredFieldValidator&gt; &lt;/ItemTemplate&gt; &lt;/asp:TemplateField&gt; &lt;asp:TemplateField HeaderText="Value"&gt; &lt;ItemTemplate&gt; &lt;asp:TextBox ID="txt_Value" runat="server" Width="58px" Text="0"&gt;&lt;/asp:TextBox&gt; &lt;/ItemTemplate&gt; &lt;/asp:TemplateField&gt; &lt;/Columns&gt; &lt;/asp:GridView&gt; CS: protected void gv_RowDataBound(object sender, GridViewRowEventArgs e) { if (e.Row.RowType == DataControlRowType.DataRow) { CheckBox checkbox1 = e.Row.FindControl("checkbox1") as CheckBox; RequiredFieldValidator rfv = e.Row.FindControl("rfv") as RequiredFieldValidator; DropDownList drpPaymentMethod = (DropDownList)e.Row.FindControl("drpPaymentMethod"); // you can just pass "this" instead of "myDiv.ClientID" and get the ID from the DOM element checkbox1.Attributes.Add("onclick", "UpdateValidator('" + checkbox1.ClientID + "','" + drpPaymentMethod.ClientID + "','" + rfv.ClientID + "');"); if (!checkbox1.Checked) drpPaymentMethod.Attributes.Add("disabled", "disabled"); } } javascript: function UpdateValidator(chkID, drpID, validatorid) { //enabling the validator only if the checkbox is checked var enableValidator = $("#" + chkID).is(":checked"); if (enableValidator) $('#' + drpID).removeAttr('disabled'); else $('#' + drpID).attr('disabled', 'disabled'); var vv = $('#' + validatorid).val(); ValidatorEnable(document.getElementById(validatorid), enableValidator); } </code></pre>
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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