datagridview on reload doesnt show contents

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I have a datagridview who's source is a data table
once i clear the gridview using

dgvSolution.Columns.Clear();

and when a new data source is loaded into it, the contents are not shown unless i click on any one of the columns.
how do i resolve this?

This is how i reset its content and add new set of columns.

dt.Reset();
            numbersearch = num;
            DataColumn dc1 = new DataColumn("Number");
            DataColumn dc2 = new DataColumn("Correct");
            DataColumn dc3 = new DataColumn("Inline");
            dt.Columns.Add(dc1);
            dt.Columns.Add(dc2);
            dt.Columns.Add(dc3);

The code runs in a loop..The output is shown first time but hides after its reset.

Posted 1-Dec-11 22:01pm

Pramod Harithsa

Updated 2-Dec-11 0:06am

v5

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D K N T H 2-Dec-11 4:10am

what do you mean when you click on the view,, please provide your code.. thanks

Pramod Harithsa 2-Dec-11 4:12am

when i click on one of the columns the data is shown, otherwise it stays hidden.

D K N T H 2-Dec-11 4:16am

did you tried to rebind your gridview?

Pramod Harithsa 2-Dec-11 5:53am

How do i re-bind in a WinForm application?

Pramod Harithsa 2-Dec-11 4:21am

I use
dgvSolution.DataSource = da.generate();
the method returns a datatable. How do i bind grid view?

2 solutions

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strogg · Answer 1 · 2011-12-01T23:06:00

Do not clear the columns to clear the grid.
Set the datasource to null instead

dgvSolutions.DataSource=null;

To update your gridview,
make required changes / load a new DataTable and set it as the datasource

dgvSolution.AutoGenerateColumns = true;
dgvSolution.DataSource = dt;

If you do not wish columns to be auto-generated, then you must add columns manually & set each column's DataPropertyName to the DataTable's Field Name & then assign the source. (You can also add columns & set DataPropertyName in the designer)

D K N T H · Answer 2 · 2011-12-02T00:29:00

Solution 2

try this.

C#

datagrid.databind();

thanks

Posted 2-Dec-11 0:29am

D K N T H

Comments

Pramod Harithsa 2-Dec-11 7:02am

In windows form such a method doesnt exist!