On page load I want to color GridView's button backcolor

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I have set active and deactive status in database for gridview button. when I load gridview on page load i want to color button according to database value.

Posted 11-Feb-13 21:33pm

Dhanashree Dive

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Avik Ghosh22 · Answer 1 · 2013-02-11T22:10:00

Solution 1

C#

foreach (GridViewRow row in GridView1.Rows)
        {
            Button BTN = (Button)row.FindControl("XXXXX");
            BTN.BackColor = System.Drawing.Color.Bisque;
        }

Posted 11-Feb-13 22:10pm

Avik Ghosh22

Comments

Dhanashree Dive 12-Feb-13 8:32am

foreach (GridViewRow row in griduser.Rows)
{
Button BTN = (Button)row.FindControl("lnkstatus");
ClassConnection csc = new ClassConnection();
SqlConnection con = new SqlConnection(csc.connmethod());
SqlDataReader dr;
string sstr = "Select flag from Registration";
SqlCommand cmd = new SqlCommand(sstr, con);
con.Open();
dr = cmd.ExecuteReader();
if (dr.HasRows)
{
while (dr.Read())
{
string flag = dr[0].ToString();
if (flag == "1")
{

BTN.BackColor = System.Drawing.Color.Green;
}
else
{

BTN.BackColor = System.Drawing.Color.Red;
}
}
}
dr.Close();
con.Close();

}

By this code it is coloring all buttons with same color. I want to color buttons according to database value

*Karthik Harve* · Answer 2 · 2013-02-12T00:17:00

Solution 2

Hi,

try as below.

Add, one hidden label "lblStatus" in gridview.

ASP.NET

<templatecolumn visible="false">
<itemtemplate>
<asp:label id="lblStatus" runat="server" text="<%#Eval("Status") %>" xmlns:asp="#unknown"></asp:label>
</itemtemplate>
</templatecolumn>

C#

//In Row data bound event, add below lines.

if(e.Row.RowType == DataControlRowType.DataRow)
{
Button btn = (Button)e.Row.FindControl("btn");
Label lbl = (Label)e.Row.FindControl("lblStatus");
if(Convert.ToBoolean(lbl.Text))
{
  btn.BackColor = System.Drawing.Color.Gray;
}
else
{
  btn.BackColor = System.Drawing.Color.Green;
}
}

The label text will be binded by datasource from database. based on that status value, the button color can be changed.

Note that, the text for status would be "True" or "False" otherwise you can compare with data of your choice.

hope it helps.

Posted 12-Feb-13 0:17am

Karthik Harve

Updated 12-Feb-13 6:36am

v2

Comments

Dhanashree Dive 12-Feb-13 8:13am

protected void griduser_DataBound(object sender, EventArgs e)
{
if(e.Row.RowType == RowType.DataRow)
{
Button btn = (Button)e.Row.FindControl("btn");
Label lbl = (Label)e.Row.FindControl("lblStatus");
if(Convert.ToBoolean(lbl.Text))
{
btn.BackColor = System.Drawing.Color.Gray;
}
else
{
btn.BackColor = System.Drawing.Color.Green;
}
}
Thank you for your reply. But I am getting these two errors.

Error 39 'System.EventArgs' does not contain a definition for 'Row' and no extension method 'Row' accepting a first argument of type 'System.EventArgs' could be found (are you missing a using directive or an assembly reference?)

Error 40 The name 'RowType' does not exist in the current context

Karthik Harve 12-Feb-13 12:38pm

Are you checking in row databound event ? method signature would be something like this
protected void griduser_RowDataBound(object sender, GridViewRowEventArgs e)
{
}
also check updated answer with above method signature for the event.

Dhanashree Dive 12-Feb-13 23:20pm

Error 40 The name 'RowType' does not exist in the current context
now this error is coming. Please hepl me out.

Karthik Harve 12-Feb-13 23:22pm

is it a gridview or datagrid ?

Dhanashree Dive 12-Feb-13 23:24pm

Gridview.

Karthik Harve 12-Feb-13 23:33pm

GridViewRow defenitly has "RowType" property. check your method signature for RowDataBound event, it must be like below.
protected void griduser_RowDataBound(object sender, GridViewRowEventArgs e)
{
}

your its not just EventArgs, its GridViewRowEventArgs. then you will get that property "RowType"

hope i am clear to you.

Dhanashree Dive 12-Feb-13 23:49pm

It is working now.
Thank you for your help.

Karthik Harve 12-Feb-13 23:57pm

welcome.!