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GridView operations with example

Posted by Deepak Rai Articles | ASP.NET Controls September 30, 2010
In this article I am showing you an example of different operations in GridView.
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Example 1 -

This is a example of upadating a GridView at run time.

Step 1:

Drag one GridView Control and one SqlDatasurce from toolbox onto your aspx page..

Step 2:

Create a table in Sql Server, details as follows-

Sql Table Fields.

Table Name -Customers

Column Name-

1:-CustomerID-Varchar(50) with Primary Key
2:-ContactName-Varchar(50)with NoT Null
3:-CompanyName-Varchar(50)

Step 3:

Go to aspx part of asp.net web page-

And add the following mannually

Note:- You can write a custom connection String in place of

ConnectionString="<%$ ConnectionStrings:empConnectionString %>"

Like............

ConnectionString="server=yourservername or use dot(.) only on place of server name;database=databasename;Integrated Security=true or SSPI"

<form id="form1" runat="server">
    <asp:SqlDataSource ID="ds1" runat="server"
       ConnectionString="<%$ ConnectionStrings:empConnectionString %>"
       SelectCommand="SELECT * FROM [Customers]"
       UpdateCommand="Update [Customers] set [ContactName]=@ContactName,[CompanyName]=@CompanyName
       WHERE ([CustomerID] = @CustomerID)">
        <UpdateParameters>
        <asp:Parameter Name="CustomerId" Type="String" />
        <asp:Parameter Name="ContactName" Type="String" />
        </UpdateParameters>
    </asp:SqlDataSource>

Step 4:

Set DataKeyNames="CustomerID" in Grid View Control.

      <asp:GridView ID="GridView1" Runat="server"
      DataSourceID="ds1" DataKeyNames="CustomerID"
      AutoGenerateColumns="False" AllowPaging="True" >
      <Columns>
         <asp:CommandField ShowEditButton="True"></asp:CommandField>
         <asp:BoundField ReadOnly="True" HeaderText="CustomerId"    InsertVisible="False" DataField="CustomerID" SortExpression="CustomerID">
         </asp:BoundField>
         <asp:BoundField HeaderText="ContactName" DataField="ContactName" SortExpression="ContactName">
         </asp:BoundField>
         <asp:BoundField HeaderText="CompanyName" DataField="CompanyName" SortExpression="CompanyName">              
         </asp:BoundField>                                        
      </Columns>
 </asp:GridView>
</form>

Output:

1.gif

Example 2:

This is an example of selecting record from a GridView at run time using details view.

Step 1:

Drag one GridView Control, one Details View Control and Two SqlDatasource from toolbox onto your aspx page..

Step 2:

Create a table in Sql Server, details as follows-

Sql Table Fields.

Table Name -Customers

Coloumn Name-

1:-CustomerID-Varchar(50) with Primary Key
2:-ContactName-Varchar(50)with NoT Null
3:-CompanyName-Varchar(50)

Step 3:

Go to aspx part of asp.net web page-

And add the following mannually

Note:- You can write a custom connection String in place of

ConnectionString="<%$ ConnectionStrings:empConnectionString %>"

Like............

ConnectionString="server=yourservername or use dot(.) only in place of server name;database=databasename;Integrated Security=true or SSPI"

<form id="form1" runat="server">
<asp:SqlDataSource ID="ds1" runat="server"
 ConnectionString="<%$ ConnectionStrings:empConnectionString %>"
 SelectCommand="SELECT [CustomerID] FROM [Customers]">
</asp:SqlDataSource>

Set DataKeyNames="CustomerID" in Grid View Control.

<asp:gridview ID="Gridview1" runat="server" AutoGenerateSelectButton="True"
        DataSourceID="ds1" DataKeyNames="CustomerID">
       </asp:gridview>
        <asp:SqlDataSource ID="ds2" runat="server"
ConnectionString="<%$ ConnectionStrings:empConnectionString2 %>" SelectCommand="SELECT * FROM [Customers] WHERE ([CustomerID] = @CustomerID)">
       <SelectParameters>
        <asp:ControlParameter ControlID="Gridview1" Name="CustomerID"
        PropertyName="SelectedValue" Type="String" />
        </SelectParameters>
      </asp:SqlDataSource>
<asp:DetailsView ID="DetailsView1" runat="server" DataSourceID="ds2">
</asp:DetailsView>
</form>     

Output
 
2.gif

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