Problem with Gridview

Question

User-973030546 posted

Hi

I'm trying to add rows programatically to my gridview, which is not binded to any data source, but ArgumentOutOfRange Exception was thrown, what should I do?!

here is my code

 

protected void taskGridView_Load(object sender, EventArgs e)

{

 GridViewRow gridViewRow = new GridViewRow(0, 0, DataControlRowType.DataRow, DataControlRowState.Normal);           

 ((GridView)sender).Controls[0].Controls.Add(gridViewRow);

 

}

 

thanks

 

 

 

 

 

 

Answer 1

User2114377676 posted

It seems like this expression is incorrect: ((GridView)sender).Controls[0].Controls.Add(gridViewRow); Are you sure that there is at least 1 control in ((GridView)sender).Controls?

Check these links as well: 
http://forums.asp.net/p/1222691/2185804.aspx
http://www.codeproject.com/Articles/16089/NewRow-GridView 

Answer 2

User1143442848 posted

Hi Flor,

As @BorysG suggested, please try to read the given links.

And there is a code snippet  for you to refer to:

code in .aspx

<asp:gridview id="GridView1" runat="server" allowpaging="true" autogeneratecolumns="false"
pagesize="5" style="margin-top: 20px;" ondatabound="GridView1_DataBound" onpageindexchanging="GridView1_PageIndexChanging">
              <columns>
                     <asp:templatefield headertext="Letter">
                           <itemtemplate>
                                  <%# Container.DataItem %>
                           </itemtemplate>
                     </asp:templatefield>
              </columns>
   </asp:gridview>

code in .cs

   private void GetData()
        {
            string[] letters = new string[] { "A", "B", "C", "D", "E", "F", "G" };
            GridView1.DataSource = letters;
            GridView1.DataBind();
        }

        protected void Page_Load(object sender, EventArgs e)
        {
            if (!this.IsPostBack)
            {
                this.GetData();
            }
        }

        protected void GridView1_DataBound(object sender, EventArgs e)
        {
            for (int i = GridView1.Rows.Count + 1; i <= GridView1.PageSize; i++)
            {
                GridViewRow row = new GridViewRow(
                    0,
                    0,
                    DataControlRowType.DataRow,
                    (i % 2 > 0) ? DataControlRowState.Normal : DataControlRowState.Alternate);

                foreach (DataControlField field in GridView1.Columns)
                {
                    TableCell cell = new TableCell();
                    cell.Text = String.Format("Row {0} added.", i);
                    row.Cells.Add(cell);
                }
                GridView1.Controls[0].Controls.AddAt(i, row);
            }
        }

Best Regards,

Lisa Zhang

Answer 3

User-1552614833 posted

refer

http://geekswithblogs.net/dotNETvinz/archive/2009/06/04/adding-dynamic-rows-in-gridview-with-textboxes.aspx