Code Master: Different Gridview Operations

We use gridview control for different purpose in our application. Here I am explanning some of the
most useful operations using gridview
Here I am showing the final results of the various samples. You can download the complete source in end of the article.

Search in Gridview

General Edit operations with Gridview.

Showing Image in gridview.

Showing Image in gridview from Databas

Gridview with checkboxes

Modalpopup with Gridview

Hovermenu with Gridview

Import Excel to Gridview

Import Gridview to Excel

Using Filters in Gridview

Search in Gridview
Some times we need search the inner details of a gridview. For this requirement we can use this functionality.

General Edit operations with Gridview.
This is very common operation. But really useful when we have few columns

Showing Image in gridview.
Some times we have to show Images inside gridview which are placed in one folder in server.

 <asp:TemplateField HeaderText="Image">

           <ItemTemplate>

            <img src="Images/<%# DataBinder.Eval(Container.DataItem, "Mobile")%>" 

            width="200px" 

            height="200px" />

           </ItemTemplate>

          </asp:TemplateField>

Showing Image in gridview from Databas
If the Images are stored in database, then we have to use Generic handler, by using this we can retrive the Images from database. You can find the source in download.

  <asp:TemplateField HeaderText="Image">

           <ItemTemplate>

            <asp:Image ID="imgproduct" runat="server" Width="100px" Height="100px" 

            ImageUrl='<%# "Product.ashx?pid="+ Eval("PID") %>'  />

           </ItemTemplate>

          </asp:TemplateField>

Gridview with checkboxes
In many requirements we will have checkboxes in our grid. check here how to get the selected checkbox values inide the gridview

Modalpopup with Gridview
In gridview we can show the Ajax Modalpopup, when user clicks on button which placed inside a gridview.

  if (e.CommandName == "view")

        {

            string idval = e.CommandArgument.ToString();

            DataSet ds = (DataSet)Session["dbsample"];

            DataRow[] gvw = ds.Tables[0].Select("ID = '" + idval + "'");

            if (gvw.Length > 0)

            {

                txtname.Text = gvw[0]["Name"].ToString();

                txtdept.Text = gvw[0]["Department"].ToString();

                txtdesig.Text = gvw[0]["Designation"].ToString();

                txtemail.Text = gvw[0]["Email"].ToString();

                txtphone.Text = gvw[0]["Phone"].ToString();

                txtaddress.Text = gvw[0]["Address"].ToString();

            }

            ModalPopupExtender1.Show();

        }

Hovermenu with Gridview
Check out this example, how to integrate a hovermenu with the gridview

   protected void grdImage_RowDataBound(object sender, GridViewRowEventArgs e)

    {

        if (e.Row.RowType == DataControlRowType.DataRow)

        {

            AjaxControlToolkit.HoverMenuExtender hme = e.Row.FindControl("HoverMenuExtender1") as AjaxControlToolkit.HoverMenuExtender;

            e.Row.ID = "row" + e.Row.RowIndex.ToString();

            Panel hf = e.Row.FindControl("pnl1") as Panel;

            hme.TargetControlID = e.Row.ID;

        }

    }