Getting value from a cell from a gridview on RowDataBound event

Question

string percentage = e.Row.Cells[7].Text;

I am trying to do some dynamic stuff with my GridView, so I have wired up some code to the RowDataBound ev

Answer 1

use RowDataBound function to bind data with a perticular cell, and to get control use (ASP Control Name like DropDownList) GridView.FindControl("Name of Control")

Answer 2

why not pull the data directly out of the data source.

DataBinder.Eval(e.Row.DataItem, "ColumnName")

Answer 3

The above are good suggestions, but you can get at the text value of a cell in a grid view without wrapping it in a literal or label control. You just have to know what event to wire up. In this case, use the DataBound event instead, like so:

protected void GridView1_DataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        if (e.Row.Cells[0].Text.Contains("sometext"))
        {
            e.Row.Cells[0].Font.Bold = true;
        }
    }
}

When running a debugger, you will see the text appear in this method.

Answer 4

Regarding the index selection style of the columns i suggest you do the following. i ran into this problem but i was going to set values dynamically using an API so what i did was this : keep in mind .CastTo<T> is simply ((T)e.Row.DataItem)

and you have to call DataBind() in order to see the changes in the grid. this way you wont run into issues if you decide to add a column to the grid.

 protected void gvdata_RowDataBound(object sender, GridViewRowEventArgs e)
        {
            if(e.Row.RowType == DataControlRowType.DataRow)
            {
                var number = e.Row.DataItem.CastTo<DataRowView>().Row["number"];
                e.Row.DataItem.CastTo<DataRowView>().Row["ActivationDate"] = DateTime.Parse(userData.basic_info.creation_date).ToShortDateString();
                e.Row.DataItem.CastTo<DataRowView>().Row["ExpirationDate"] = DateTime.Parse(userData.basic_info.nearest_exp_date).ToShortDateString();
                e.Row.DataItem.CastTo<DataRowView>().Row["Remainder"] = Convert.ToDecimal(userData.basic_info.credit).ToStringWithSeparator();

                e.Row.DataBind();
            }
        }

Answer 5

Just use a loop to check your cell in a gridview for example:

for (int i = 0; i < GridView2.Rows.Count; i++)
{
    string vr;
    vr = GridView2.Rows[i].Cells[4].Text; // here you go vr = the value of the cel
    if (vr  == "0") // you can check for anything
    {
        GridView2.Rows[i].Cells[4].Text = "Done";
        // you can format this cell 
    }
}

Answer 6

<asp:TemplateField HeaderText="# Percentage click throughs">
  <ItemTemplate>
    <%# AddPercentClickThroughs(Convert.ToDecimal(DataBinder.Eval(Container.DataItem, "EmailSummary.pLinksClicked")), Convert.ToDecimal(DataBinder.Eval(Container.DataItem, "NumberOfSends")))%>
  </ItemTemplate>
</asp:TemplateField>


public string AddPercentClickThroughs(decimal NumberOfSends, decimal EmailSummary.pLinksClicked)
{
    decimal OccupancyPercentage = 0;
    if (TotalNoOfRooms != 0 && RoomsOccupied != 0)
    {
        OccupancyPercentage = (Convert.ToDecimal(NumberOfSends) / Convert.ToDecimal(EmailSummary.pLinksClicked) * 100);
    }
    return OccupancyPercentage.ToString("F");
}