Add/Delete rows from gridview without database

Question

5.00/5 (1 vote)

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hi ,

am adding rows to the gridview without using a database like below code
how can i delete the row from gridview

C#

public static DataTable dt;
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            dt = new DataTable();
            DataRow dr = null;
            dt.Columns.Add(new DataColumn("RowNumber", typeof(string)));
            dt.Columns.Add(new DataColumn("Column1", typeof(string)));
            dt.Columns.Add(new DataColumn("Column2", typeof(string)));
            dr = dt.NewRow();
            dr["RowNumber"] = 1;
            dr["Column1"] = "column1cell";
            dr["Column2"] = "column2cell";
            dt.Rows.Add(dr);
            GridView1.DataSource = dt;
            GridView1.DataBind();
        }
    }

C#

protected void Button1_Click(object sender, EventArgs e)
    {
        if (dt.Rows.Count > 0)
        {
            dt.Rows.RemoveAt(0);
            GridView1.DataSource = dt;
            GridView1.DataBind();
        }
    }

Posted 8-Dec-11 3:12am

pradeep manne

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Comments

Member 8635497 31-May-12 3:39am

A field or property with the name 'RowNumber' was not found on the selected data source. how to remove it

Member 13543270 21-Feb-18 10:54am

some of the rows in the gridview don't delete while others do

4 solutions

Solution 1

http://www.codersource.net/asp-net/asp-net-2-0/grid-view-control-in-asp-net-2-0.aspx[^]

Follow this link and see how to set the EDITING, DELETING in datagridview........:)

Posted 8-Dec-11 3:27am

NikulDarji

Solution 4

Hi,

Try this code it is working

protected void grdDaily_RowCreated(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
DataTable dt = (DataTable)ViewState["CurrentTable"];
LinkButton lb = (LinkButton)e.Row.FindControl("LB_Remove");
if (lb != null)
{
if (dt.Rows.Count > 1)
{
if (e.Row.RowIndex == dt.Rows.Count - 1)
{
lb.Visible = false;
}
}
else
{
lb.Visible = false;
}
}
}
}

Posted 14-Dec-11 23:25pm

Prashant Srivastava LKO

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pradeep manne · Accepted Answer · 2011-12-08T04:06:00

hi ,
i have made the selected row of the grid view visible=false
used session for this

DataTable table = (DataTable)Session["CurrentData"];
       for (int i = GridView1.Rows.Count - 1; i >= 0; i--)
       {
           CheckBox chkbox = (CheckBox)GridView1.Rows[i].Cells[0].FindControl("selector");
           if (chkbox.Checked)
           {
               GridView1.Rows[i].Visible = false;
           }

       }

here the selector is the gridview checkbox id

pradeep manne · Accepted Answer · 2011-12-14T23:05:00

DataTable table = (DataTable)Session["CurrentData"];

for (int i = GridView1.Rows.Count - 1; i >= 0; i--)
        {

            CheckBox chkbox = (CheckBox)GridView1.Rows[i].Cells[0].FindControl("selector");
            if (chkbox.Checked)
            {
                // GridView1.Rows[i].Visible = false;

                myDt.Rows.RemoveAt(i);
                DataTable myDt1 = (DataTable)Session["tabel"];
                GridView1.DataSource = myDt1;
                GridView1.DataBind();


            }
        }

Add/Delete rows from gridview without database

4 solutions

Solution 1

Solution 2

Solution 3

Solution 4

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