Use Of Exception Handling In ASP.NET

Question

What is exception handling in ASP.NET ?

Answer 1

check this:

in aspx page:


 <asp:GridView ID="grid" runat="server" AutoGenerateColumns="false">
        <Columns>
            <asp:TemplateField HeaderText="StudentID">
                <ItemTemplate>
                    <asp:Label ID="lblStudentId" Text='<% #Eval("StudentID") %>' runat="server"></asp:Label>
                </ItemTemplate>
            </asp:TemplateField>
            <asp:TemplateField HeaderText="Student Name">
                <ItemTemplate>
                    <asp:Label ID="lblStudentName" runat="server" Text='<% #Eval("StudentName") %>'></asp:Label>
                </ItemTemplate>
            </asp:TemplateField>
        </Columns>
    </asp:GridView>

in cs:

add the namespaces:

using System.Data.SqlClient;
using System.Data;

write this code in page load:


string connstr = "Data Source=WIN2K8; Initial Catalog=ABC;User ID=sa; Password=123";
  DataSet ds = new DataSet();
    SqlConnection conn = new SqlConnection(connstr);
    string strsql = "Select StudentID,StudentName from student";
  SqlDataAdapter da = new SqlDataAdapter(strsql, conn);
  da.Fill(ds, "student");
  grid.DataSource = ds.Tables["student"];
  grid.DataBind();

Answer 2

no not this databind in gridview like template option in ASP script

Answer 3

Step 1: Create new Project
Launch Visual Studio 2010, click on File->New->Website to create a  new ASP.NET website Project.

Step 2: Create a new Page
Right click on the Project on the Solution Explorer Panel. Select Add->New Item. Then, choose Web Form. I'd like to name it Products.aspx

Step3: Add the following code to the Products.aspx file

<form id="form1" runat="server">
  <div>
  <asp:GridView ID="grid" runat="server">
  </asp:GridView>
 
  </div>
  </form>

then go to .cs and
add the namespaces:

using System.Data.SqlClient;
using System.Data;

write this code in page load:


string connstr = "Data Source=WIN2K8; Initial Catalog=ABC;User ID=sa; Password=123";
  DataSet ds = new DataSet();
    SqlConnection conn = new SqlConnection(connstr);
    string strsql = "Select * from Products";
  SqlDataAdapter da = new SqlDataAdapter(strsql, conn);
  da.Fill(ds, "ProductsTable");
  grid.DataSource = ds.Tables["ProductsTable"];
  grid.DataBind();


change the connection string as your and change the query and check.