How to get the check box checked in a grid view on row data bound event.

Question

3.50/5 (3 votes)

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Only if value is "Paid" then only checkbox should be checked else it should unchecked.
I am trying this its making all the checkboxes checked.

protected void grdDataUpdate_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            CheckBox chk = (CheckBox)e.Row.FindControl("chkFIPaid");

            for (int i = 0; i < _dtStudentsFD.Rows.Count; i++)
            {
                if (_dtStudentsFD.Rows[i]["status"].ToString() == "Paid")
                {
                    chk.Checked = true;
                }
                else
                {
                    chk.Checked = false;
                }
            }
        }
    }

Posted 12-Nov-14 21:35pm

Mohammed_Faisal_Majeed

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Comments

Laiju k 13-Nov-14 4:04am

what is value in _dtStudentsFD.Rows[i]["status"].ToString()

jaket-cp 13-Nov-14 4:27am

or what is the last value of _dtStudentsFD.Rows[i]["status"].ToString() as chk.Checked will be checked with that last value.

[no name] 13-Nov-14 4:37am

Value is either "Paid" or "Pending"

4 solutions

Solution 3

protected void grdDataUpdate_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
CheckBox chk = (CheckBox)e.Row.FindControl("chkFIPaid");
if (e.Row.Cells[i].Text == "Paid")
{
chk.Enabled = false;
}
else
{
chk.Enabled = true;
}
}
}

Posted 12-Nov-14 22:26pm

Deepu S Nair

v2

Solution 2

look at your code.i think your doing something wrong with fallowing code.

C#

for (int i = 0; i < _dtStudentsFD.Rows.Count; i++)
 {
     if (_dtStudentsFD.Rows[i]["status"].ToString() == "Paid")
     {
        chk.Checked = true;
     }
     else
     {
        chk.Checked = false;
     }
}

Instead of above code , you should try with fallowing approach..
Here,'e.Row.Cells[5].Text' is the value of status field

C#

void GridView1_RowDataBound(Object sender, GridViewRowEventArgs e)
  {
    if(e.Row.RowType == DataControlRowType.DataRow)
    {
     CheckBox chk=(CheckBox)e.Row.cells[0].FindControl("chkMyCheckBox");
     if(chk != null)
     {
      if(e.Row.Cells[5].Text == ""status"") //check for status column
      chk.Checked = true;
     }
    }
  }

Posted 12-Nov-14 22:25pm

V5709

Solution 4

Here is an alternative technique that can be used to get the status value.
It should be available from the DataItem, instead of adding extra columns or controls to the GridView.

C#

void grdDataUpdate_RowDataBound(Object sender,GridViewRowEventArgs e) {
	if(e.Row.RowType == DataControlRowType.DataRow) {
		CheckBox chk = (CheckBox) e.Row.FindControl("chkFIPaid");

		DataRowView rowView = (DataRowView) e.Row.DataItem;
		String status = rowView["status"].ToString();

		if(status == "Paid") {
			chk.Checked = true;
		}
		else {
			chk.Checked = false;
		}
		//short hand if, ?: Operator
		//chk.Checked=(status == "Paid")?true:false;
	}
}

Check out: GridViewRow.DataItem Property[^]

The status checking on the CheckBox can also be performed on the aspx markup page:

ASP.NET

<asp:CheckBox ID="chkFIPaid" Checked='<%# (Eval("status") == "Paid") ? true : false %>' runat="server" />

Check out: ?: Operator[^]
Just for reference, VB.Net alternative to the "?: Operator": IIf Function[^]

Posted 13-Nov-14 2:03am

jaket-cp

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jing567 · Accepted Answer · 2014-11-12T22:24:00

SQL

Why do you use another for loop in RowDataBOund... RowDatabound means it will be called for each and every row...
Solution 1:
Place anothe column in your data grid which takes the value of "Status" and make it invisible and then write ur code like this

C#

protected void grdDataUpdate_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            CheckBox chk = (CheckBox)e.Row.FindControl("chkFIPaid");
             Label lblSatatus = (Label)e.Row.FindControl("lblStatusCol");
           
                if (lblSatatus.Text.ToString() == "Paid")
                {
                    chk.Checked = true;
                }
                else
                {
                    chk.Checked = false;
                }
            
        }
    }

Here when every column is being bounded the value of status and check box are accessed and then depending on Status col value of that row.. the check box status will be decided.

Please Accept as solution if it is useful to You