Index was out of range

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i want to get ID When i m clicking on Edit button in gridveiw table. but i faced a problem when i m doing this ... i m using GridViewUpdateEventArgs event. its do not return the ID.

{System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
at System.Collections.ArrayList.get_Item(Int32 index)
at System.Web.UI.WebControls.DataKeyArray.get_Item(Int32 index)
at Doze.gvw_RowUpdating(Object sender, GridViewUpdateEventArgs e) }

Above Exception give in this line to me.

Int32 id = Int32.Parse(GridView.DataKeys[e.RowIndex].Value.ToString());

can anyone tell me What mistake i have Done ?

Posted 3-Jul-12 1:59am

miss_sumaira

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Comments

Shemeer NS 3-Jul-12 9:19am

Do you have multiple Data Key Names in Gridview? can you provide some more details about the code

3 solutions

Solution 2

Plz go through this link

http://stackoverflow.com/questions/5381670/index-was-out-of-range-error-in-gridview
http://forums.asp.net/t/1634281.aspx/1

Posted 3-Jul-12 2:22am

pradiprenushe

Comments

miss_sumaira 3-Jul-12 8:46am

any other solution ?

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Shemeer NS · Accepted Answer · 2012-07-03T03:27:00

If you have single key in Data Key

DataKeyNames="empId"

then use

C#

int empId= Convert.ToInt32(GridView1.DataKeys[row.RowIndex].Value);

If you have two keye in Data Key

DataKeyNames="empId,depId"

then use

C#

int EmployeeID = Convert.ToInt32(GridView1.DataKeys[row.RowIndex].Values[0]);

As per your comment I have added this below part....

Why you have mentioned EditIndex in the HTML itself?no issue just to confirm...

Please find the code below and check you are doing the same....

HTML
--------

XML

<asp:GridView ID="gvw" runat="server" AutoGenerateColumns="False" CssClass="basix"
    Width="408px" CellPadding="4" ForeColor="#333333" GridLines="None" Height="127px"
    OnSelectedIndexChanged="gvwExample_SelectedIndexChanged" OnRowDeleting="gvw_RowDeleting1"
    OnRowUpdating="gvw_RowUpdating" OnRowCancelingEdit="gvw_RowCancelingEdit"
    OnRowEditing="gvw_RowEditing" DataKeyNames="ID">
    <Columns>
        <asp:BoundField DataField="ID" HeaderText="ID" AccessibleHeaderText="ID" />
        <asp:BoundField DataField="MedDoze" HeaderText="DOZE" AccessibleHeaderText="DOZE" />
        <asp:CommandField HeaderText="Delete" ShowDeleteButton="True" />
        <asp:CommandField ShowEditButton="True" />
    </Columns>
    <PagerStyle BackColor="#666666" ForeColor="White" HorizontalAlign="Center" />
    <SelectedRowStyle BackColor="#C5BBAF" Font-Bold="True" ForeColor="#333333" />
    <HeaderStyle BackColor="#1C5E55" Font-Bold="True" ForeColor="White" />
</asp:GridView>

Code Behind
-----------

C#

protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            fillGrid();
        }
    }
    protected void gvw_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
    {
        gvw.EditIndex = -1;
        fillGrid();
    }
    protected void gvw_RowDeleting1(object sender, GridViewDeleteEventArgs e)
    {
        // do you code here
    }
    protected void gvw_RowEditing(object sender, GridViewEditEventArgs e)
    {
        gvw.EditIndex = e.NewEditIndex;
        fillGrid();

    }
    protected void gvw_RowUpdating(object sender, GridViewUpdateEventArgs e)
    {
        int myID = Convert.ToInt32(gvw.DataKeys[e.RowIndex].Value);
        Response.Write(myID); // this will print the Id on the screen
        //do you update logic here
    }
    protected void gvwExample_SelectedIndexChanged(object sender, EventArgs e)
    {
        // do you code here
    }

mark it as solution if it answer your question

Raghunatha_Reddy_S · Accepted Answer · 2012-07-03T02:14:00

Solution 1

There may be a mistake:
First check that you have provided the field that you are accessing in DataKeyNames property in that gridview control.

Posted 3-Jul-12 2:14am

Raghunatha_Reddy_S

Comments

miss_sumaira 3-Jul-12 8:37am

I m not using DataKeyName property for Assessing....

Index was out of range

3 solutions

Solution 3

Solution 1

Solution 2

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