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Insert, Update, Delete with Gridview ... Simple Way

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4 Mar 2008CPOL 487K   20.7K   71   39
This is a simple way to Insert, Update, Delete and Display through a single page.

InsertingWithGridView/3.gif

Introduction

This is a simple way to display, Update, Delete and Insert through a single page.

Using the Code

Many of us may be encountered with Update and Delete operations with GridView. I’m explaining this with more functionality that is Inserting record through the GridView. There could me more way to achieve this functionality but I think it’s a very simple way to achieve this. I’m taking a very simple table named "quest_categories"

InsertingWithGridView/Table.gif

SQL
CREATE TABLE [dbo].[quest_categories](
    [cat_id] [int] IDENTITY(1,1) NOT NULL,
    [cat_name] [varchar](150) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,
 CONSTRAINT [PK_quest_categories] PRIMARY KEY CLUSTERED 
(
    [cat_id] ASC
)WITH (IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]

Here is the GridView that is going to perform the operation for Insert, Update and Delete the Data. Here I’ve added a Button "Add Category" for inserting a new record.

InsertingWithGridView/1.gif

Here is the Code for "Add Category"

C#
protected void btnAdd_Click(object sender, EventArgs e)
{
    SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["exam_moduleConnectionString"].ConnectionString);
    SqlDataAdapter da = new SqlDataAdapter("SELECT cat_id, cat_name FROM quest_categories", con);
    DataTable dt = new DataTable();
    da.Fill(dt);

    // Here we'll add a blank row to the returned DataTable
    DataRow dr = dt.NewRow();
    dt.Rows.InsertAt(dr, 0);
    //Creating the first row of GridView to be Editable
    GridView1.EditIndex = 0;
    GridView1.DataSource = dt;
    GridView1.DataBind();
    //Changing the Text for Inserting a New Record
    ((LinkButton)GridView1.Rows[0].Cells[0].Controls[0]).Text = "Insert";

}

After Clicking on "Add Category" the GridView will diplay like this. InsertingWithGridView/3.gif

And according to Text Diplays we’ll do further processing as "Update" or "Insert" record.

Here is the code for "RowUpdating" event.

C#
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
    {

        if (((LinkButton)GridView1.Rows[0].Cells[0].Controls[0]).Text == "Insert")
        {
            SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["exam_moduleConnectionString"].ConnectionString);
            SqlCommand cmd = new SqlCommand();
            cmd.CommandText = "INSERT INTO quest_categories(cat_name) VALUES(@cat_name)";
            cmd.Parameters.Add("@cat_name", SqlDbType.VarChar).Value = ((TextBox)GridView1.Rows[0].Cells[2].Controls[0]).Text;

            cmd.Connection = con;
            con.Open();
            cmd.ExecuteNonQuery();
            con.Close();
        }
        else
        {
            SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["exam_moduleConnectionString"].ConnectionString);
            SqlCommand cmd = new SqlCommand();
            cmd.CommandText = "UPDATE quest_categories SET cat_name=@cat_name WHERE cat_id=@cat_id";
            cmd.Parameters.Add("@cat_name", SqlDbType.VarChar).Value = ((TextBox)GridView1.Rows[e.RowIndex].Cells[2].Controls[0]).Text;
            cmd.Parameters.Add("@cat_id", SqlDbType.Int).Value = Convert.ToInt32(GridView1.Rows[e.RowIndex].Cells[1].Text);
            cmd.Connection = con;
            con.Open();
            cmd.ExecuteNonQuery();
            con.Close();
            
        }


        GridView1.EditIndex = -1;
        BindData();
    }

Rest operations are same as you might have done before so I’m not explaining it further.

InsertingWithGridView/2.gif

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


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Web Developer TATA Communications
India India
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Comments and Discussions

 
QuestionMay i Know meaning of the Line Pin
sakthipriya843-Dec-09 1:16
sakthipriya843-Dec-09 1:16 
GeneralGreat Pin
Amjad_pk27-Oct-09 18:32
Amjad_pk27-Oct-09 18:32 
GeneralThe article is good Pin
swapniljakkulwar6-Aug-09 19:45
swapniljakkulwar6-Aug-09 19:45 
GeneralThis is excellent solution Pin
ftrghuy13-May-09 0:25
ftrghuy13-May-09 0:25 
QuestionHow do you handle cancel? Pin
doran_doran23-Mar-09 11:28
doran_doran23-Mar-09 11:28 
GeneralThanks! Pin
pap200519-Feb-09 12:35
pap200519-Feb-09 12:35 
GeneralGood Article Pin
kjelltj26-Jan-09 3:33
kjelltj26-Jan-09 3:33 
Generalgood one Pin
Jayakrishnan Venkatramanan10-Jan-09 8:06
professionalJayakrishnan Venkatramanan10-Jan-09 8:06 
GeneralSome more resources on GridView here Pin
Sheo Narayan3-Jul-08 6:49
Sheo Narayan3-Jul-08 6:49 
Generalpoor article Pin
madhunangeth26-Jun-08 1:33
madhunangeth26-Jun-08 1:33 
GeneralGood Article Pin
ComputerAngel1-Jun-08 7:57
ComputerAngel1-Jun-08 7:57 
GeneralIt doesn’t work correctly!!! Pin
docsoft24-Mar-08 10:05
docsoft24-Mar-08 10:05 
GeneralBest Article Pin
Manish_Jaanvi4-Mar-08 2:12
Manish_Jaanvi4-Mar-08 2:12 
GeneralRe: Best Article Pin
Dewey4-Mar-08 13:35
Dewey4-Mar-08 13:35 

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