asked on

Change Cell Color dynamically in a Gridview Loop

I am trying to build a for loop that will go to each row in my gridview and check wheter a row has any of the following criterias, but I am not quite sure how to build the loop since right now I specify the column , please help

protected void GridView3_RowDataBound(object sender, GridViewRowEventArgs e)
    {

        for (Int32 i = 0; i < GridView3.Columns.Count; i++)

        { 

        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            DataRowView row = e.Row.DataItem as DataRowView;


         
            if (row["NT1_Status"].ToString() == "Assigned")
            {
                e.Row.Cells[0].BackColor = System.Drawing.Color.LightGreen;
            }

            else if (row["NT1_Status"].ToString() == "BR")
            {
                e.Row.Cells[0].BackColor = System.Drawing.Color.Azure;
            
            }

            else if (row["NT1_Status"].ToString() == "OpenNS")
            {
                e.Row.Cells[0].BackColor = System.Drawing.Color.LightSalmon;

            }
            }
        }
    }

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Miguel Oz

Ok, this event occurs for every row in your grid, thus no need for loop.
I rewrite your code, notice the way i fetch the value:
string statusValue = (string)DataBinder.Eval(e.Row.DataItem, "NT1_Status");

You need to fech any required value that way and cast it to your needs.

Cheers,
Miguel

protected void GridView3_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            string statusValue = (string)DataBinder.Eval(e.Row.DataItem, "NT1_Status"); 

            if (statusValue == "Assigned")
            {
                e.Row.Cells[0].BackColor = System.Drawing.Color.LightGreen;
            }

            else if (statusValue == "BR")
            {
                e.Row.Cells[0].BackColor = System.Drawing.Color.Azure;

            }

            else if (statusValue == "OpenNS")
            {
                e.Row.Cells[0].BackColor = System.Drawing.Color.LightSalmon;

            }
        }
    }

Open in new window

TonyReba

ASKER

Well really is not for specific column eg. Nt1. Is any cell in the grid with those statuses.

MajorBigDeal

I was having a similar problem and I used the following logic in the page load event instead of the row binding to get around it.

DataTable dt = (DataTable)gridView.DataSource;
int rowIndex = 0;
foreach (GridViewRow gvr in gridView.Rows)
{
gvr.DataItem = dt.Rows[rowIndex++];
DataRow dr = (DataRow)gvr.DataItem;
object[] oa = dr.ItemArray;
if (oa[7].ToString().Length == 0)
{
gvr.Cells[7].BackColor = System.Drawing.Color.Red;
}
}

TonyReba

ASKER

I dont reallly see the logc there,

the function should look for all cells in the grid, but instead of saying
string statusValue = (string)DataBinder.Eval(e.Row.DataItem, "NT1_Status");

where "NT1_Status" is the status field , i want to look for all cells and when the Status field of each column is for example

if (statusValue == "Assigned")
{
e.Row.Cells[0].BackColor = System.Drawing.Color.LightGreen;
}

but NT1_Staus is just one of many databound fields which are called e.g. NT2_Status.,,,

sorrry my english is very bas hope i get the idead.

Miguel Oz

GridView3_RowDataBound occurs every time a row is bound to data in a GridView control.
Check:
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.gridview.rowdatabound.aspx

If you want to look at all the the other values, just repeat the same construct:
string status2Value = (string)DataBinder.Eval(e.Row.DataItem, "NT2_Status");
//do similar code here
etc.
Note: For the column loop, you can even use the column name, instead of hard -coded names ("NT2_Status")

Question: Are you planning to change every cell or just cell[0] based on the contents.

TonyReba

ASKER

I am not very familiar with GridView, but

I have a filed on the database for each column status , so the grid looks like

NT1 NT2 NT3
43 Assigned 65 BR
34 11 Assigned
22 BR
11

So on this case 43 and 11 cells should change color

if (statusValue == "Assigned")
{
e.Row.Cells[0].BackColor = System.Drawing.Color.LightGreen;
}

SOLUTION

Kamal Khaleefa

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ASKER CERTIFIED SOLUTION

Miguel Oz

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