How to delete selected rows from gridview datatable.

Rahul Khanna

Hi all,

I am trying to delete selected rows from gridview in button click event.My code is not deleting the correct row, if I select first row its deleting the 2nd row and If I select 2nd row its deleting the 3rd row and so on.

Here is my code:

protected void btnRemoveUser_Click(object sender, EventArgs e)

{

DataTable yourDataTable = GetDataTable(Studentlist); //CheckBox chkbx;

foreach(GridViewRow oneRow in Studentlist.Rows)

{

CheckBox chkbx = (CheckBox)oneRow.FindControl("ckbxID");

for(int i = 0; i< yourDataTable.Rows.Count; i++)

{

if (chkbx.Checked == true)

{

yourDataTable.Rows.RemoveAt(i);

}

break;

}

Studentlist.DataSource = yourDataTable;

Studentlist.DataBind();

}

Note: Studentlist is the gridview ID.

Here, my purpose is to delete the selected rows from gridview so any alternate solution is also appreciated.

2 Replies

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Vulpes12y ago
Accepted answer
Not 100% sure but try this:

protected void btnRemoveUser_Click(object sender, EventArgs e)
{
DataTable yourDataTable = GetDataTable(Studentlist);
var List indices = new List();

for(int i = 0; i < Studentlist.Rows.Count; i++)
{
GridViewRow oneRow = Studentlist.Rows[i];
CheckBox chkbx = (CheckBox)oneRow.FindControl("ckbxID");
if(chkbx.Checked) indices.Add(i);
}

Studentlist.DataSource = null; // remove binding

for(int i = indices.Count - 1; i >= 0; i--)
{
yourDataTable.Rows.RemoveAt(indices[i]);
}

Studentlist.DataSource = yourDataTable; // rebind
Studentlist.DataBind();
}
Rahul Khanna11y ago
Thank you sir, with little modification your code works like charms. Once again thanks for your code.