This code sample explains how to create columns in a GridView control dynamically in ASP.NET. The code is written in C#. This function can be called whenever we need to create new columns in GridView.
public DataTable Getcallcoveragesummaryallheader()
{
string strDate;
DataTable dtCallCoverage = new DataTable();
DataColumn dCol = new DataColumn("Employee Name", typeof(System.String));
dtCallCoverage.Columns.Add(dCol);
dCol = new DataColumn("Call Details", typeof(System.String));
dtCallCoverage.Columns.Add(dCol);
if (drpYear.SelectedValue != "")
{
for (int ColIndex = 1; ColIndex <= 12; ColIndex++)
{
string cYear = drpYear.SelectedValue;
strDate = Convert.ToString(ColIndex) + "/" + 1 + "/" + cYear;
DateTime chkDate = Convert.ToDateTime(strDate);
string CMonthName = chkDate.ToString("MMM");
dCol = new DataColumn(CMonthName);
dtCallCoverage.Columns.Add(dCol);
}
} GridDisplay.Visible = true;
string sPrevname = string.Empty;
string mstrCall = "Technical,Technical Avg,Commercial,Commercial Avg,Total";
string[] strCall = mstrCall.Split(',');
foreach (string strCallHeader in strCall)
{
DataRow drow = dtCallCoverage.NewRow();
drow["Employee Name"] = thomas;
}
drow["Call Details"] = strCallHeader;
sPrevname = "thomas;
dtCallCoverage.Rows.Add(drow);
}
DataRow dRow1 = dtCallCoverage.NewRow();
dRow1["Call Details"] = "Average Per Day";
dtCallCoverage.Rows.Add(dRow1);
return dtCallCoverage;
}
The code sample below is an example on how to call the above function.
DataTable dtReport = Getcallcoveragesummaryallheader();
gridview.DataSource = dtReport;
gridview.DataBind();
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