How to get records of grid view on click of button on header of gridview

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I am using grid view that shows all the tasks for log in user. User can check/unchecked tasks and based on check box status, record is updated on grid view.
My grid view has template field which has header template and item template. Header template contains check boxes and asp:button and item template contains check boxes. On check/unchecked of header template check boxes, all check boxes in item template are checked/unchecked. The purpose of asp:button is to update records on database based on check/unchecked status of rows.

What i wanted is on click of asp:button on header template, all records of grid view are to be fetched including check boxes checked status so that the check status can be updated on database.

I had used row command event of grid view. It fired on handler on click of button. However, I am not able to get records.
Which event is used to accomplish this? How can i do this.

http://stackoverflow.com/questions/28870200/how-to-get-records-of-grid-view-on-click-of-button-on-header-of-gridview[^]

Posted 4-Mar-15 17:52pm

Codes DeCodes

Updated 4-Mar-15 17:55pm

Wendelius

v2

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Answer 1 · 2015-03-04T18:02:00

Solution 1

Inside RowCommand you can easily get that particular Row. As you are saying that you want all the rows to be fetched, then inside that event you just need to loop through all the GridViewRow.

Inside the loop, you can get all the details of the rows including the checkbox check status.

Posted 4-Mar-15 18:02pm

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

Codes DeCodes · Answer 2 · 2015-03-04T18:40:00

Solution 2

thanks Tadit, I did like this:

C#

protected void gridTransaction_RowCommand(object sender, GridViewCommandEventArgs e)
        {
            if (e.CommandName == "headerClicked")
            {
                foreach (GridViewRow row in gridTransaction.Rows)
                {
                    var record = row;
                }
            }
        }

I did some debugging, in record, dataItem shown is null. Also text is blank. I am binding grid on page load..Did i missed something that resulted to null item being binded???

Posted 4-Mar-15 18:40pm

Codes DeCodes

Updated 4-Mar-15 18:45pm

v3

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 5-Mar-15 2:39am

Good. Please accept my answer and up vote. :)

Also adding a solution can't notify me. Always add comment to my answer, so that I can know that you have a question.

So, how exactly your binding? Have you checked for IsPostBack or not?

Codes DeCodes 5-Mar-15 11:23am

yes, i did...the code on page load is
protected void Page_Load(object sender, EventArgs e)
{
if(!IsPostBack)
{
BindGrid();
}
}

private void BindGrid()
{
Transaction transaction = new Transaction();
gridTransaction.DataSourceID = string.Empty;
gridTransaction.DataSource = transaction.GetAllTransactionEntrySaved();
gridTransaction.DataBind();
}
Still, on rowcommand, null value is being shown..

Codes DeCodes · Answer 3 · 2015-03-09T20:55:00

Solution 4

I used jquery to get all elements of gridview in list, then i went to serverside and did operation of saving.

Posted 9-Mar-15 20:55pm

Codes DeCodes