Nested grid and findControl over child grid
Over here i have two gridview (GridView1,GridView2) and on 2nd grid a linkbutton, onclick event i need to extract particular row data. that my need here its go.
On HTML
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" OnRowDataBound="GridView1_RowDataBound">
<Columns>
<asp:TemplateField HeaderText="Project">
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Bind("PkID") %>'></asp:Label>
<asp:Label ID="Label3" runat="server" Text='<%# Bind("StrName") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Sub Task">
<ItemTemplate>
<asp:GridView ID="GridView2" runat="server" AutoGenerateColumns="False" OnRowCommand="GridView2_RowCommand">
<Columns>
<asp:TemplateField HeaderText="Task Name">
<ItemTemplate>
<asp:Label ID="Label2" runat="server" Text='<%# Bind("name") %>'></asp:Label>
<asp:Label ID="Label4" runat="server" Text='<%# Bind("pk") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Task Status">
<ItemTemplate>
<asp:DropDownList ID="DropDownList1" runat="server">
<asp:ListItem>Open</asp:ListItem>
<asp:ListItem>Close</asp:ListItem>
<asp:ListItem>Finish</asp:ListItem>
</asp:DropDownList>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" CommandName="Select" CommandArgument="<%#((GridViewRow) Container).RowIndex %>">Update</asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<HeaderStyle BackColor="#CCCCFF" />
</asp:GridView>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<HeaderStyle BackColor="Maroon" ForeColor="#FFCC00" />
</asp:GridView>
</div>
</form>
</body>
</html>
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
GridView1.DataSource = d("SELECT PkID, StrName, DateTimeStamp FROM T2");
GridView1.DataBind();
}
}
public SqlDataReader d(string _Query)
{
SqlCommand cmd = new SqlCommand(_Query, con());
return cmd.ExecuteReader();
}
public SqlConnection con()
{
SqlConnection con = new SqlConnection(System.Configuration.ConfigurationManager.AppSettings["ConnectionDemoString"].ToString());
con.Open();
return con;
}
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
try
{
if (e.Row.RowType == DataControlRowType.DataRow)// Bind nested grid view with parent grid view
{
string _name = ((Label)e.Row.FindControl("Label3")).Text;
GridView griedview2 = (GridView)e.Row.FindControl("GridView2");
griedview2.DataSource = d("SELECT pk, name, DrpDwn FROM TBNAME where DrpDwn='" + _name + "'");
griedview2.DataBind();
}
}
catch (Exception)
{
throw;
}
}
protected void GridView2_RowCommand(object sender, GridViewCommandEventArgs e)
{
GridView GridView2 = (GridView)sender; //find nested grid view
GridViewRow chrow = (GridViewRow)GridView2.Parent.Parent; // parent grid's row for find any control from parent grid view
if (e.CommandName == "Select")
{
int index = Convert.ToInt32(e.CommandArgument); //use command argument for identify row with nested grid view
int pid = Convert.ToInt32(((Label)GridView2.Rows[index].FindControl("Label4")).Text); // id from labe4 of nested grid view
DropDownList childrop = ((DropDownList)GridView2.Rows[index].FindControl("DropDownList1")); // get dropdownlist box of nested grid view
string status = childrop.SelectedItem.Text;
}
Hope u guys got it....If any trouble message me. :)
Stay Tune...
Have a nice day... 'N happy Coding :)
