LinkButton Commandargument is giving values of the first page in all the other pages (Gridview pagination)
I am using GridView along with custom pagination to show data. In one of the columns where I am showing a link (linkButton) to delete the record, I am passing ID of the record to the backend function. I am getting the commandargument value correctly for all the records in page 1 but from page 2 onwards Im getting the same values as page 1 instead of values of page 2 records.
Below is the ASP code
<form id="form1" runat="server">
<div class="FilterDiv">Page Size:
<asp:DropDownList ID="ddlPageSize" runat="server" AutoPostBack="true" OnSelectedIndexChanged="PageSize_Changed">
<asp:ListItem Text="4" Value="4" />
<asp:ListItem Text="2" Value="2" />
<asp:ListItem Text="1" Value="1" />
</asp:DropDownList>
</div>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false" CssClass="standard-table"
AllowSorting="true" OnSorting="SortResultBy" OnRowDataBound="GridViewRowEventHandler">
<HeaderStyle CssClass="standard-tableHead" />
<RowStyle CssClass="standard-tableBody" />
<Columns>
<asp:BoundField DataField="newscode" HeaderText="News Code" SortExpression="newscode" />
<asp:BoundField DataField="newstitle" HeaderText="News Title" SortExpression="newstitle" />
<asp:BoundField DataField="newsdesc" HeaderText="News Description" ItemStyle-Width="40%" />
<asp:BoundField DataField="Created" HeaderText="Created Date" SortExpression="Created" />
<asp:BoundField DataField="status" HeaderText="Status" />
<asp:TemplateField HeaderText="Actions">
<ItemTemplate>
<asp:HyperLink ID="Hyperlink2" runat="server" Text='Details' NavigateUrl='<%# Eval("newsid","newsdetails.aspx?idnews={0}") %>'>
</asp:HyperLink>
<asp:HyperLink ID="Hyperlink1" runat="server" Text='Edit' NavigateUrl='<%# Eval("newsid","editnews.aspx?idnews={0}") %>'>
</asp:HyperLink>
<asp:LinkButton ID="NewsDeletelink" OnCommand="DeleteNewsbyID" CommandArgument='<%# Eval("newsid") %>' runat="server" EnableViewState="true"> Delete </asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
<div class="pagination">
<asp:Repeater ID="rptPager" runat="server">
<ItemTemplate>
<asp:LinkButton ID="lnkPage" runat="server" Text = '<%#Eval("Text") %>' CommandArgument = '<%# Eval("Value") %>' Enabled = '<%# Eval("Enabled") %>' OnClick = "Page_Changed"></asp:LinkButton>
</ItemTemplate>
</asp:Repeater>
</div>
</form>
The records from the database is fetched based on the PageIndex and PageSize from an SP and data is bound to gridview as below.
SqlCommand myCommand = new SqlCommand("getAllNews", myConnection);
myCommand.CommandType = CommandType.StoredProcedure;
myCommand.Parameters.Add("@sortby", SqlDbType.NChar).Value = SortBy;
myCommand.Parameters.AddWithValue("@PageIndex", pageIndex);
myCommand.Parameters.AddWithValue("@PageSize", int.Parse(ddlPageSize.SelectedValue));
myCommand.Parameters.Add("@RecordCount", SqlDbType.Int, 4);
myComman开发者_JAVA技巧d.Parameters["@RecordCount"].Direction = ParameterDirection.Output;
//SqlDataAdapter dataAdapter = new SqlDataAdapter("select * from news order by " + SortValue, myConnection);
SqlDataAdapter dataAdapter = new SqlDataAdapter(myCommand);
// create the DataSet
DataSet dataSet = new DataSet();
// fill the DataSet using our DataAdapter
dataAdapter.Fill(dataSet, "news");
GridView1.DataSource = dataSet;
GridView1.DataBind();
int recordCount = Convert.ToInt32(myCommand.Parameters["@RecordCount"].Value);
this.PopulatePager(recordCount, pageIndex);
protected void GridViewRowEventHandler(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
if (e.Row.Cells[4].Text == "1")
{
e.Row.Cells[4].Text = "<a>Published</a> ";
}
else
{
e.Row.Cells[4].Text = "<a>Draft</a> ";
}
if (e.Row.Cells[2].Text.Length >= 50)
{
e.Row.Cells[2].Text = e.Row.Cells[2].Text.Substring(0, 50) + "...";
}
}
}
Can somebody able to make out why I am getting the values of page 1 in all the pages?
I know this is a bit old but I just had a similar problem.
In order to get the correct row data for all pages, hook into the RowDataBound event and set the LinkButton's CommandArgument there.
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