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How to get GridViewRow from DataKeys

I know this type of question is asked before but no one got the answer yet...!!
How to get a Grid View Row from Data Keys.I don't want to iterate through the whole gird view.
I want to access specific text box(s) in a grid view.
for example in a 100 rows grid view i only want to disable any 2 text boxes on Page Load.
I have Data Key Names defined in grid, but how to get rows from it ?
any idea?

Please try following code..
protected void GVSample_RowDataBound(object sender, GridViewRowEventArgs e)
{
//Get data row view
DataRowView drview = e.Row.DataItem as DataRowView;
if (e.Row.RowType == DataControlRowType.DataRow)
{
//Find textbox control
TextBox txtname = (TextBox)e.Row.FindControl("txtName");
string Name = txtname.Text;
if (((GridView)sender).DataKeys[e.Row.RowIndex].Value.ToString() == "Leave")
{
txtname.disable=true;
}
else
{
txtname.disable = false;
}
}
}

Set Gridview Row Background Color using value in Binding DataSet

I'm having a GridView which contains a Column ID
I'm having a DataTable which contains two columns
ID
DONE
I'm Binding the ID Column in the DataTable to the GridView.
Until no Its fine.
But now I need to set the Background color of the GridView Row Basing on the DONE Column Value in DataTable.( If DONE value is true the Row Background Color has to be changed.)
How can I achieve this without binding the DONE Row to the GridView??

Create GridView1_RowDataBound event for your GridView.
if (e.Row.RowType == DataControlRowType.DataRow)
{
//Check your condition here
//Get Id from here and based on Id check value in the
//underlying dataSource Row where you have "DONE" column value
// e.g.
// (gridview.DataSource as DataTable), now you can find your row and cell
// of "Done"
If(Condition True)
{
e.Row.BackColor = Drawing.Color.Red; // your color settings
}
}
example code snippet:
protected void EmployeeAvailabilityGridView_RowDataBound(object sender, GridViewRowEventArgs e)
{
try
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
if(Convert.ToBoolean(DataBinder.Eval(e.Row.DataItem, "DONE")))
{
e.Row.BackColor = System.Drawing.Color.LightPink;
}
}
}
catch (Exception ex)
{
//ErrorLabel.Text = ex.Message;
}
}
Refer following link for more detailed implementation:
Change GridView row color based on condition
Note: If that row does not exist in DataSource then you must have some logic to get that from other place. May be you have ID as Foreign Key in another table.

This link might help you
http://deepak-sharma.net/2012/01/27/how-to-change-the-background-color-of-rows-in-a-gridview-based-on-the-value-of-a-column-in-asp-net-3-5/
if (e.Row.RowType == DataControlRowType.DataRow)
{
// determine the value of the UnitsInStock field
if((DataBinder.Eval(e.Row.DataItem,"strShift")).ToString() =="Alarm")
{
// color the background of the row yellow
e.Row.BackColor = Color.Yellow;
}

Create MyGridView _RowDataBound event for your GridView.
if (e.Row.RowType = DataControlRowType.DataRow)
{
//Check your condition here, Cells[1] for ex. is DONE/Not Done column
If(e.Row.Cells[1].Text == "DONE")
{
e.Row.BackColor = Drawing.Color.Green // This will make row back color green
}
}

I also solved my condition. But For Alternative row type, the background color is not set.
if (e.Row.RowType == DataControlRowType.DataRow)
{
Label LabelStatus = (Label)e.Row.FindControl("lblStatus");
if(LabelStatus.Text.Trim().ToLower().Equals("inactive"))
{
e.Row.BackColor = System.Drawing.Color.Gray;
}
}
Can you please let me know what may be the reason?

How to change the color of label depending on certain values in the gridview

I have a sqldatasource and gridview.
I have two columns:
ID | Status
1 Closed
2 Opened
3 Waiting
How to change the color of the label in the view state of the gridview depeding on the value from the 'status' column.
For example if the value in the cell is "Closed" the label color will be red , if it's opened then it will become green and so on.
I've thought about looping through all cells of the status column and if the cell contains a certain value the color will change. ( in row data bound event ) . But I haven't done this because I don't find this idea as a good one because of the looping part.

use the RowDataBound event from the grid view to check what is the status. You don't need to do a loop because that event (if you register or not) is being called.
One thing to note, you will need to make sure you are looking at the right row (header, footer, alternate etc) so something like this
void YourGridViewName_RowDataBound(Object sender, GridViewRowEventArgs e)
{
if(e.Row.RowType == DataControlRowType.DataRow)
{
// Do your color change here by accessing the col with e.Row.Cells[column_index].BackColor = 'what ever you want'
}
}

You can enable the RowDataBound Event in the markup
<asp:GridView ID="gridview1" runat="server" OnRowDataBound="RowDataBound">
</asp:GridView>
And put this in your Code-Behind file.
protected void RowDataBound(Object sender, GridViewRowEventArgs e)
{
if(e.Row.RowType == DataControlRowType.DataRow)
{
// Retrieve the underlying data item. In this example
// the underlying data item is a DataRowView object.
DataRowView rowView = (DataRowView)e.Row.DataItem;
// Retrieve the state value for the current row.
String state = rowView["state"].ToString();
//format color of the as below
if(state == "Closed")
(e.Row.FindControl("lbl1") as Label).BackColor = Color.Red;
if(state == "Open")
(e.Row.FindControl("lbl1") as Label).BackColor = Color.Green;
if(state == "Waiting")
(e.Row.FindControl("lbl1") as Label).BackColor = Color.Yellow;
}
}

You have to write code in the rowdatabound event of your grid view.
Example:
private GridView1_RowDatabound(object sender,EventArgs e)
{
if(e.Row.RowType == DataControlRowType.DataRow)
{
// You have to put your logic here.
if( e.Row.Cells[1].Text == "closed" )
{
// to get a reference to label control
Label lb = e.Row.FindControl("LabelCOntrolID");
}
}
}

Is it Possible to Change the text color for columns in Grid View based upon search item?

Note: i need to change in different columns based upon search request.

Yes you can do it in GridView.RowDataBound event
Like this
protected void yourGridView_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
e.Row.Cells[0].BackColor = Color.Beige;
// 0 could be any valid cell index in your row
}
}
for more info Go here

How to highlight specific row in a DetailsView?

I am a new ASP.NET developer. I am using a DetailsView now to dispaly some data from the database. I have the need to highlight certain two rows from the DetailsView. Both rows are VARCHAR data type.
SO HOW TO DO THAT?

Override the databound event and set the e.Row.BackColor = System.Drawing.Color.Red; or what ever color, if you have some logic to execute for finding the row that needs to be highlighted.
protected void detailsView_RowDataBound(object sender,
GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
if(...)//some condition for selection of row to be higlighted
{
e.Row.BackColor = System.Drawing.Color.Red;
}
}
}
If you need a perticular row, say 4th row to be highlighted and that's fixed then you could directly like this
detailsViewGrid.Rows[3].Row.BackColor = System.Drawing.Color.Red;
The only thing you need to keep in mind that this code would be written in only those events which would come after grid_rowdatabound event(Like pre-render)