Error Specified argument was out of the range of valid values. Parameter name: index in DataGridview Row Data Bound

Question

I got an error of

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values. Parameter name: index

Source Error:

if (e.Row.RowType == DataControlRowType.DataRow)
{
    LinkButton _singleClickButton = (LinkButton)e.Row.Cells[0].Controls[2];
    string _jsSingle = ClientScript.GetPostBackClientHyperlink(_singleClickButton, "Select$" + e.Row.RowIndex);
    e.Row.Style["cursor"] = "hand";

my code

protected void Page_Load(object sender, EventArgs e)
{
    if (!this.IsPostBack)
    {
        DataTable dt = new DataTable();
        dt.Columns.AddRange(new DataColumn[3] { new DataColumn("itemid", typeof(string)),
                new DataColumn("itemdesc", typeof(string)),
                new DataColumn("itemtype",typeof(string)) });
        dt.Rows.Add("FG001", "Red Velvet Cake (8'' round)","Dry Goods");
        dt.Rows.Add("FG002", "Voilet Velvet Cake (8'' round)", "Dry Goods");
        GridView1.DataSource = dt;
        GridView1.DataBind();  
    }
}

protected void OnDataBound(object sender, EventArgs e)
{
    GridViewRow row = new GridViewRow(0, 0, DataControlRowType.Header, DataControlRowState.Normal);
    for (int i = 0; i < GridView1.Columns.Count; i++)
    {
        TableHeaderCell cell = new TableHeaderCell();
        TextBox txtSearch = new TextBox();
        txtSearch.Attributes["placeholder"] = GridView1.Columns[i].HeaderText;
        txtSearch.CssClass = "search_textbox";

        cell.Controls.Add(txtSearch);
        row.Controls.Add(cell);
    }

    GridView1.HeaderRow.Parent.Controls.AddAt(1, row);
}

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (!IsPostBack)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            LinkButton _singleClickButton = (LinkButton)e.Row.Cells[0].Controls[0];
            string _jsSingle = ClientScript.GetPostBackClientHyperlink(_singleClickButton, "Select$" + e.Row.RowIndex);
            e.Row.Style["cursor"] = "hand";
            e.Row.Attributes["onclick"] = _jsSingle;
        } 
    }
}

protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
{
    GridViewRow selectedRow = GridView1.SelectedRow;
    hiddenitemid.Value = selectedRow.Cells[0].Text;
}

the error pointing

LinkButton _singleClickButton = (LinkButton)e.Row.Cells[0].Controls[0];

In your error source it says this error belongs on Row.Cells[0].Controls[2] line but you say Row.Cells[0].Controls[0] line? — Soner Gönül
and it's also not DataGridView (WinForms) but GridView (Web) ... — PrfctByDsgn
If you break at the line where the exception is throwing, can you verify that e.Row.Cells contains any elements? If it does, can you also verify that e.Row.Cells[0].Controls contains any elements? Also, just a nitpick, but in the GridView1_RowDataBound handler, the inner if-statements are duplicated. — Jason Z
thanks all for you response. any hint on how can I remove the error it throwing? — junnel

Shadow Wizard Is Vaccinated V3 Shadow Wizard Is Vaccinated V3 · Accepted Answer · 2014-08-03T10:21:04

Either you have rows without any cells, or you have a cell with less than three controls.

To prevent the code from crashing, just check if you have enough items:

if (e.Row.Cells.Count > 0)
{
    TableCell cell = e.Row.Cells[0];
    if (cell.Controls.Count > 2)
    {
        LinkButton _singleClickButton = (LinkButton)cell.Controls[2];
        string _jsSingle = ClientScript.GetPostBackClientHyperlink(_singleClickButton, "Select$" + e.Row.RowIndex);
        e.Row.Style["cursor"] = "hand";
    }
}

Error Specified argument was out of the range of valid values. Parameter name: index in DataGridview Row Data Bound

2 Answers