Databases
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Postsdbo
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  1. PO
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    <p>You can use <code>GridView1.Rows(0)</code> to get the first row:</p> <pre><code>Dim firstRow = GridView1.Rows(0) Dim TextBox2 = DirectCast(firstRow.FindControl("TextBox2"), TextBox) Dim DropDownList3 = DirectCast(firstRow.FindControl("DropDownList3"), DropDownList) If TextBox2.Text.Trim.Length = 0 OrElse DropDownList3.SelectedIndex = -1 Then label6.Text = "HospNo,Date,SurgeryCode/Method are Mandatory" End If </code></pre> <p>But this is not the approach you should use in ASP.NET. Instead use <a href="http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.requiredfieldvalidator%28v=vs.100%29.aspx" rel="nofollow"><code>RequiredFieldValidator</code></a> which can ven validate on client-side.</p> <p>For example:</p> <pre><code>&lt;asp:GridView ID="GridView1" OnSelectedIndexChanged="Grid1_SelectedIndexChanged" AutoGenerateSelectButton="true" AutoGenerateColumns="false" runat="server" Width="300"&gt; &lt;RowStyle CssClass="GridViewRowStyle" /&gt; &lt;AlternatingRowStyle CssClass="GridViewAlternatingRowStyle" /&gt; &lt;HeaderStyle CssClass="GridViewHeaderStyle" /&gt; &lt;SelectedRowStyle BackColor="Aqua" /&gt; &lt;Columns&gt; &lt;asp:TemplateField HeaderText="Column 1" HeaderStyle-HorizontalAlign="Left"&gt; &lt;ItemTemplate&gt; &lt;asp:TextBox runat="server" ID="TxtColumn1" Text='&lt;%# Bind("Column1") %&gt;'&gt;&lt;/asp:TextBox&gt; &lt;asp:RequiredFieldValidator id="RequiredFieldValidator1" EnableClientScript="true" ControlToValidate="TxtColumn1" Display="Static" ErrorMessage="HospNo,Date,SurgeryCode/Method are Mandatory" runat="server"/&gt; &lt;/ItemTemplate&gt; &lt;/asp:TemplateField&gt; &lt;/Columns&gt; &lt;/asp:GridView&gt; </code></pre>
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    1. This table or related slice is empty.
    1. POhow to check first row and column of grid view using asp.net
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    1. USTim Schmelter
    1. USTim Schmelter
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. COi tried but for line Dim firstRow = GridView1.Rows.Cast(Of GridViewRow).First is showing error 'cast' is not a member of 'System.Web.UI.WebControls.GridViewRowCollection'
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      1. USuser1702346
    2. COWhich framework do you use? It's there since .NET 3.5. http://msdn.microsoft.com/en-us/library/bb341406(v=vs.90).aspx
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      1. USTim Schmelter
    3. COframework 1.1 pls help me
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      1. USuser1702346
 

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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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If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

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