Problem in cmd.Parameters.AddWithValue("@l_no", l_no) Not getting l_no

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<pre lang="xml">I table viewyn and dept_letter. primary ket l_no

]<asp:TemplateField HeaderText="l_no">
<ItemTemplate>
<asp:LinkButton runat="server" ID ="l_no" Text='<%# Eval("l_no") %>' OnClick="l_no_Click" />
</ItemTemplate>
</asp:TemplateField>

protected void l_no_Click(object sender, EventArgs e)
{
// Fetch the customer id
LinkButton lb = sender as LinkButton;
string custID = lb.Text;
lblCustValue.Text = custID;
// Connection
string constr = System.Web.Configuration.WebConfigurationManager.ConnectionStrings["JAPITConnectionString"].ConnectionString;
string sql = "SELECT * FROM Letter_dept WHERE l_no= @l_no";
SqlConnection connection = new SqlConnection(constr);
connection.Open();
SqlCommand cmd = new SqlCommand(sql, connection);
cmd.Parameters.AddWithValue("@l_no", l_no);
cmd.CommandType = CommandType.Text;

SqlDataReader dr = cmd.ExecuteReader();
// Bind the reader to the GridView
// You can also use a lighter control
// like the Repeater to display data
GridView2.DataSource = dr;
GridView2.DataBind();
connection.Close();
// Show the modalpopupextender
ModalPopupExtender1.Show();

}

Error is coming Error 1 The name 'l_no' does not exist in the current context</pre>

Posted 15-Dec-11 2:03am

Shinand

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Jigar Bagadai · Answer 1 · 2011-12-15T02:20:00

Solution 1

cmd.Parameters.AddWithValue("@l_no", l_no)

you are passing value as l_no but that is variable or any thing you are not mentioned that.so defined that thing

Posted 15-Dec-11 2:20am

Jigar Bagadai

Comments

Shinand 15-Dec-11 8:35am

<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">

<asp:ScriptManager ID="ScriptManager1" runat="server">

<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<contenttemplate>

<asp:GridView ID="GridView1" runat="server"
AutoGenerateColumns="False" AllowPaging="True" DataSourceID="SqlDataSource1"
onselectedindexchanged="GridView1_SelectedIndexChanged" >
<columns>

<asp:TemplateField HeaderText="l_no">
<itemtemplate>
<asp:LinkButton runat="server" ID ="l_no" Text='<%# Eval("l_no") %>' OnClick="l_no_Click" />

<asp:BoundField DataField="nam_dep" HeaderText="nam_dep"
SortExpression="nam_dep" />
<asp:BoundField DataField="no_deo" HeaderText="no_deo"
SortExpression="no_deo" />
<asp:BoundField DataField="no_mon" HeaderText="no_mon"
SortExpression="no_mon" />
<asp:BoundField DataField="le_yn" HeaderText="le_yn"
SortExpression="le_yn" />

<asp:BoundField DataField="dd_yn" HeaderText="dd_yn" SortExpression="dd_yn" />

<asp:ModalPopupExtender ID="ModalPopupExtender1" runat="server"
TargetControlID="btnShowModalPopup"
PopupControlID="divPopUp"
BackgroundCssClass="popUpStyle"
PopupDragHandleControlID="panelDragHandle"
DropShadow="true">
<asp:Button runat="server" ID="btnShowModalPopup" style="display:none"/>
<div class="popUpStyle" id="divPopUp" style="display:none;">
<asp:Panel runat="Server" ID="panelDragHandle" CssClass="drag">
Hold here to Drag this Box

<asp:Label runat="server" ID="lblText" Text="CustomerID: ">
<asp:Label ID="lblCustValue" runat="server">
<asp:GridView ID="GridView2" runat="server">

<asp:Button ID="btnClose" runat="server" Text="Close" />
<br />
</div>

<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:JAPITConnectionString %>"
SelectCommand="SELECT * FROM [viewyn]">

Shinand · Answer 2 · 2011-12-15T02:36:00

I have less knowledge this i want l_no please help me .thank for help

<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">

<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>

<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>

<asp:GridView ID="GridView1" runat="server"
AutoGenerateColumns="False" AllowPaging="True" DataSourceID="SqlDataSource1"
onselectedindexchanged="GridView1_SelectedIndexChanged" >
<Columns>

<asp:TemplateField HeaderText="l_no">
<ItemTemplate>
<asp:LinkButton runat="server" ID ="l_no" Text='<%# Eval("l_no") %>' OnClick="l_no_Click" />
</ItemTemplate>
</asp:TemplateField>

<asp:BoundField DataField="nam_dep" HeaderText="nam_dep"
SortExpression="nam_dep" />
<asp:BoundField DataField="no_deo" HeaderText="no_deo"
SortExpression="no_deo" />
<asp:BoundField DataField="no_mon" HeaderText="no_mon"
SortExpression="no_mon" />
<asp:BoundField DataField="le_yn" HeaderText="le_yn"
SortExpression="le_yn" />

<asp:BoundField DataField="dd_yn" HeaderText="dd_yn" SortExpression="dd_yn" />
</Columns>
</asp:GridView>
<asp:ModalPopupExtender ID="ModalPopupExtender1" runat="server"
TargetControlID="btnShowModalPopup"
PopupControlID="divPopUp"
BackgroundCssClass="popUpStyle"
PopupDragHandleControlID="panelDragHandle"
DropShadow="true"> </asp:ModalPopupExtender>
<asp:Button runat="server" ID="btnShowModalPopup" style="display:none"/>
<div class="popUpStyle" id="divPopUp" style="display:none;">
<asp:Panel runat="Server" ID="panelDragHandle" CssClass="drag">
Hold here to Drag this Box
</asp:Panel>
<asp:Label runat="server" ID="lblText" Text="CustomerID: "></asp:Label>
<asp:Label ID="lblCustValue" runat="server"></asp:Label>
<asp:GridView ID="GridView2" runat="server">
</asp:GridView>
<asp:Button ID="btnClose" runat="server" Text="Close" />
<br />
</div>

</ContentTemplate>
</asp:UpdatePanel>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:JAPITConnectionString %>"
SelectCommand="SELECT * FROM [viewyn]"></asp:SqlDataSource>