I would like to bind two DropDownList into a GridView in ASP.NET.
I did bind one DropDownList with Databound event, but the problem is how can I bind the second DropDownList in the GridView?
One DropDownList completely binds with database, but the other does not bind with the same event or GridView.
my HTML Code:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:customerConnectionString %>"
SelectCommand="SELECT [id], [name], [gender], [city], [state] FROM [cust_info]">
</asp:SqlDataSource>
<asp:GridView ID="GridView1" runat="server" ShowFooter="true" AutoGenerateColumns="False" OnRowCommand="GridView1_RowCommand" OnRowDataBound="GridView1_RowDataBound">
<Columns>
<asp:TemplateField HeaderText="Name" SortExpression="Name"> <EditItemTemplate>
<asp:TextBox ID="txtName" runat="server" Text='<%# Eval("name") %>'></asp:TextBox>
</EditItemTemplate>
<FooterTemplate>
<asp:TextBox ID="txtNewName" runat="server"></asp:TextBox> </FooterTemplate>
<ItemTemplate>
<asp:Label ID="Label2" runat="server" Text='<%# Bind("name") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Gender">
<EditItemTemplate>
<asp:DropDownList ID="cmbGender" runat="server" SelectedValue='<%# Eval("gender") %>'>
</asp:DropDownList>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="lbGender" runat="server" Text='<%# Bind("gender") %>'></asp:Label>
</ItemTemplate>
<FooterTemplate>
<asp:DropDownList ID="cmbNewGender" runat="server" > </asp:DropDownList>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="City">
<EditItemTemplate>
<asp:TextBox ID="txtCity" runat="server" Text='<%# Bind("city") %>'></asp:TextBox>
</EditItemTemplate>
<FooterTemplate>
<asp:TextBox ID="txtNewCity" runat="server" ></asp:TextBox>
</FooterTemplate>
<ItemTemplate>
<asp:Label ID="Label3" runat="server" Text='<%# Bind("city") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="State" SortExpression="State">
<EditItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("state") %>'></asp:Label>
</EditItemTemplate>
<FooterTemplate>
<asp:TextBox ID="txtNewState" runat="server" ></asp:TextBox>
</FooterTemplate>
<ItemTemplate>
<asp:Label ID="Label4" runat="server" Text='<%# Bind("state") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Type">
<EditItemTemplate>
<asp:DropDownList ID="cmbType" runat="server" DataTextField="Type" DataValueField="Type" SelectedValue='<%# Eval("type") %>'> </asp:DropDownList>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label5" runat="server" Text='<%# Eval("type") %>'></asp:Label>
</ItemTemplate>
<FooterTemplate>
<asp:DropDownList ID="cmbNewType" runat="server" DataTextField="Type" DataValueField="Type"> </asp:DropDownList>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Edit" ShowHeader="False">
<EditItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="True" CommandName="Update" Text="Update"></asp:LinkButton>
<asp:LinkButton ID="LinkButton2" runat="server" CausesValidation="False" CommandName="Cancel" Text="Cancel"></asp:LinkButton>
</EditItemTemplate>
<FooterTemplate>
<asp:LinkButton ID="LinkButton2" runat="server" CausesValidation="False" CommandName="AddNew" Text="Add New"></asp:LinkButton>
</FooterTemplate>
<ItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="False" CommandName="Edit" Text="Edit"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
<asp:CommandField HeaderText="Delete" ShowDeleteButton="True" ShowHeader="True" />
</Columns>
</asp:GridView>
</div>
</form>
</body>
</html>
and my c# code is :
public DataTable FetchCustomerType()
{
string sql = "Select Distinct type From cust_info";
SqlDataAdapter da = new SqlDataAdapter(sql, conn);
DataTable dt = new DataTable();
da.Fill(dt);
return dt;
}
public DataTable FetchCustomerGender()
{
string sql = "Select Distinct gender From cust_info";
SqlDataAdapter da = new SqlDataAdapter(sql, conn);
DataTable dt = new DataTable();
da.Fill(dt);
return dt;
}
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
DropDownList cmbtype = (DropDownList)e.Row.FindControl("cmbType");
DropDownList cmbgender = (DropDownList)e.Row.FindControl("cmbGender");
if (cmbtype != null && cmbgender !=null)
{
cmbgender.DataSource = FetchCustomerGender();
cmbtype.DataSource = FetchCustomerType();
cmbtype.DataBind();
cmbgender.DataBind();
cmbgender.SelectedValue = GridView1.DataKeys[e.Row.RowIndex].Values[2].ToString();
cmbtype.SelectedValue = GridView1.DataKeys[e.Row.RowIndex].Values[1].ToString();
}
}
if (e.Row.RowType == DataControlRowType.Footer)
{
DropDownList cmbnewtype = (DropDownList)e.Row.FindControl("cmbNewType");
DropDownList cmbnewgndr = (DropDownList)e.Row.FindControl("cmbNewGender");
cmbnewtype.DataSource = FetchCustomerType();
cmbnewgndr.DataSource = FetchCustomerGender();
cmbnewtype.DataBind();
cmbnewgndr.DataBind();
}
}
i am tlking abt "cmbgender" and "cnbnewgender"
Where should I put the other DropDownList coding into this code which executes properly?
what is the specific changes into this problem?
Thank you.
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