How to get the value of a Hidding column in a Gridview using C#

Posted by in ASP.NET category on for Intermediate level | Views : 8019 red flag

when a user selects a row in a Grid that selected Row Hiding column value have to retrive.

     How to Hide a column in a Gridview  :-

    To Hide a column we have to use a hidden filed as follows:

eg: <asp:HiddenField ID="HiddenField1" runat="server" Value='<%# Bind("ProductId") %>' />

   Above i am using a Value attribute to retrive a data from a 'ProductId column.

   Here i am displaying 4 columns values in a Gridview.
   In a Gridview i am using 'select 'link,when a user selects a row in Grid that selected Row id value have to retrive.

   How to create a' select 'link column in Gridview :-

 'Select' Link  can be build by using 'CommandField' as follows:

<asp:CommandField ShowSelectButton="True" />
   In .aspx page

<asp:GridView ID="Gridivew1" runat ="server" AutoGenerateColumns="False" DataSourceID="SqlDataSource1" AllowPaging="True" BackColor="White" BorderColor="#CC9966" BorderStyle="None" BorderWidth="1px" CellPadding="4" OnRowDataBound="Gridivew1_RowDataBound" OnSelectedIndexChanged="Gridivew1_SelectedIndexChanged" >

<asp:CommandField ShowSelectButton="True" />

<asp:TemplateField HeaderText ="ProductName">
<asp:HiddenField ID="HiddenField1" runat="server" Value='<%# Bind("ProductId") %>' />

<asp:Label ID ="lblProductName1" runat ="server" Text ='<%#Eval("ProductName")%>'>

<asp:TemplateField HeaderText ="ProductName">
<asp:Label ID ="lblQuantityPerUnit" runat ="server" Text ='<%#Eval("QuantityPerUnit")%>'>
<asp:TemplateField HeaderText ="UnitPrice">
<asp:Label ID ="lblUnitPrice" runat ="server" Text ='<%#Eval("UnitPrice")%>'>

<RowStyle BackColor="White" ForeColor="#330099" />
<FooterStyle BackColor="#FFFFCC" ForeColor="#330099" />
<PagerStyle BackColor="#FFFFCC" ForeColor="#330099" HorizontalAlign="Center" />
<SelectedRowStyle BackColor="#FFCC66" Font-Bold="True" ForeColor="#663399" />
<HeaderStyle BackColor="#990000" Font-Bold="True" ForeColor="#FFFFCC" />

<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString %>"
SelectCommand="SELECT * FROM [Products]"></asp:SqlDataSource>

  Next Select your Gridview Events.Double click on SelectedIndexChanged Event and write the Below code  in .aspx.cs page:

protected void Gridivew1_SelectedIndexChanged(object sender, EventArgs e)
string strValue = ((HiddenField)Gridivew1.SelectedRow.Cells[1].FindControl("HiddenField1")).Value;
string strValue2 = ((Label)Gridivew1.SelectedRow.Cells[1].FindControl("lblProductName1")).Text ;

Response.Write("Product Id=" + strValue + "product=" + strValue2);


   Thanks for reading my article!

    Syed Shakeer Hussain

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About the Author

Full Name: Syed Shakeer Hussiain P
Member Level:
Member Status: Member
Member Since: 2/5/2009 3:12:18 AM
Country: India
Syed Shakeer Hussain
Shakeer Hussain has completed his Master of Computer Applications degree from Deccan College of engg and technology of Osmania University.He is a MVM of has good experience in the areas of ASP.NET, C#.NET, VB.NET, SQL SERVER 2000/2005 and Windows Mobile. He has worked in Windows Mobile,Web Applicatin and ERP projects.

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