Dynamically binding grid view

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Hi,

I am dynamically binding the Grid view on button click. But the problem is that if I again press on the button the duplicate data displays.

for ex.
button click
abc xzy
1 1
2 1

again button click
button click
abc xzy abc xzy
1 1 1 1
2 1 2 1

Please help.

C#

DataTable GetBatchDetail = new DataTable();
GetBatchDetail = objAdmin.abc(FromDate, Todate, cityid, Type);

foreach (DataColumn col in GetBatchDetail.Columns)
{
           
  BoundField bField = new BoundField();
  bField.DataField = col.ColumnName;
  bField.HeaderText = col.ColumnName;
  GridView1.Columns.Add(bField);
}
GridView1.DataSource = GetBatchDetail;
//Bind the datatable with the GridView.
GridView1.DataBind();

Posted 29-Nov-11 23:45pm

Rahul Jain1

Updated 29-Nov-11 23:48pm

RaisKazi

v2

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RaisKazi 30-Nov-11 5:49am

Edited: 1) Formatting 2) Added "pre" tag.

2 solutions

Solution 1

Try to add this code before your code :

C#

//It will clear old DataBindings
dataGridView1.DataBindings.Clear
dataGridView1.Columns.Clear();

I hope it will help you :)

Posted 29-Nov-11 23:54pm

Manoj K Bhoir

Updated 30-Nov-11 0:25am

v2

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Prince Antony G · Accepted Answer · 2011-11-30T00:16:00

Add this line in ur code

C#

GridView1.Columns.Clear();

Replace ur code

C#

DataTable GetBatchDetail = new DataTable();
GetBatchDetail = objAdmin.abc(FromDate, Todate, cityid, Type);

 GridView1.Columns.Clear();

foreach (DataColumn col in GetBatchDetail.Columns)
{
           
  BoundField bField = new BoundField();
  bField.DataField = col.ColumnName;
  bField.HeaderText = col.ColumnName;
  GridView1.Columns.Add(bField);
}
GridView1.DataSource = GetBatchDetail;
GridView1.DataBind();