I want to create GridView like this in C# Class library:
This is ASPXsource for UI:
<asp:gridview ID="Gridview1" runat="server" ShowFooter="true" AutoGenerateColumns="false" onrowcreated="Gridview1_RowCreated">
<Columns>
<asp:BoundField DataField="RowNumber" HeaderText="Row Number" />
<asp:TemplateField HeaderText="Header 1">
<ItemTemplate>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Header 2">
<ItemTemplate>
<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Header 3">
<ItemTemplate>
<asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
</ItemTemplate>
<FooterStyle HorizontalAlign="Right" />
<FooterTemplate>
<asp:Button ID="ButtonAdd" runat="server" Text="Add New Row"
onclick="ButtonAdd_Click" />
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" onclick="LinkButton1_Click">Remove</asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:gridview>
I want to format ASPX to CS (source), like this format :
{
myGrid = new SPGridView();
myGrid.ShowFooter = true;
myGrid.AutoGenerateColumns = false;
myGrid.ID = "Gridview1";
SPBoundField dest = new SPBoundField();
dest.DataField = "Number";
dest.HeaderText = "Number";
TemplateField headerOne = new TemplateField();
base.CreateChildControls();
}
I have no idea how to do this, please help.
Related
I have a simple gridview with button for each row, and I want to pass or display the value of user_full_name_ar in a label, I tried doing this using javascript function as shown below but it doesn't show the data it shows null,
gridview code:
<asp:Label ID="Label5" Text='transfer text here' runat ="server" />
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="user_name" DataSourceID="SqlDataSource1" Height="100px" Width="383px">
<Columns>
<asp:BoundField DataField="user_name" HeaderText="user_name" ReadOnly="True" SortExpression="user_name" />
<asp:BoundField DataField="user_full_name_ar" HeaderText="user_full_name_ar" SortExpression="user_full_name_ar" />
<asp:TemplateField HeaderText="user_full_name_ar" SortExpression="user_full_name_ar">
<ItemTemplate>
<asp:Label ID="Label4" Text='<%# Session["lang"].ToString() == "en"? Eval("user_full_name_en") : Eval("user_full_name_ar") %>' runat ="server" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:Button ID="ButtonSearch" runat="server" text="select" OnClientClick ="txt();" CommandArgument ='<%# Bind("user_name") %>' />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
javascript function to display value of label4 in gridview to label5 outside gridview :
<script type ="text/javascript" >
function txt() {
var t = document.getElementById("Label4");
document.getElementById("Label5") = t.value;
}
</script>
you can use a CommandField in gridview
<asp:Label ID="Label5" Text='transfer text here' runat ="server" />
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="user_name" DataSourceID="SqlDataSource1" Height="100px" Width="383px">
<Columns>
<asp:CommandField HeaderText="select" SelectText="select " ShowSelectButton="True">
</asp:CommandField>
<asp:BoundField DataField="user_name" HeaderText="user_name" ReadOnly="True" SortExpression="user_name" />
<asp:BoundField DataField="user_full_name_ar" HeaderText="user_full_name_ar" SortExpression="user_full_name_ar" />
<asp:TemplateField HeaderText="user_full_name_ar" SortExpression="user_full_name_ar">
<ItemTemplate>
<asp:Label ID="Label4" Text='<%# Session["lang"].ToString() == "en"? Eval("user_full_name_en") : Eval("user_full_name_ar") %>' runat ="server" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:Button ID="ButtonSearch" runat="server" text="select" OnClientClick ="txt();" CommandArgument ='<%# Bind("user_name") %>' />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
after in selectedindexchenge event write code below
Label5.Text = GridView1.SelectedRow.Cells[2].Text;
I need to populate a GridView with list and I want to add a footer row so the user can add a new row.
This is what my front end looks like.
<asp:GridView ID="GridView1" AllowPaging="true" ShowFooter="true" PageSize="5" OnPageIndexChanging="GridView1_PageIndexChanging" OnRowEditing="GridView1_RowEditing"
runat="server" CellPadding="3" GridLines="None" CssClass="mGrid" PagerStyle-CssClass="pgr" AlternatingRowStyle-CssClass="alt"
OnRowCancelingEdit="GridView1_RowCancelingEdit">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:ImageButton ImageUrl="~/Images/edit.png" runat="server" CommandName="Edit" ToolTip="Edit" Width="20px" Height="20px"/>
<asp:ImageButton ImageUrl="~/Images/delete.png" runat="server" CommandName="Delete" ToolTip="Delete" Width="20px" Height="20px"/>
</ItemTemplate>
<EditItemTemplate>
<asp:ImageButton ImageUrl="~/Images/save.png" runat="server" CommandName="Update" ToolTip="Update" Width="20px" Height="20px"/>
<asp:ImageButton ImageUrl="~/Images/cancel.png" runat="server" CommandName="Cancel" ToolTip="Cancel" Width="20px" Height="20px"/>
</EditItemTemplate>
<FooterTemplate>
<asp:ImageButton ImageUrl="~/Images/addnew.png" runat="server" CommandName="AddNew" ToolTip="Add New" Width="20px" Height="20px"/>
</FooterTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
This is how I populate the GridView.
protected List<Emp> GetEmpList()
{
List<Emp> lEmp = new List<Emp>();
Emp oemp = new Emp(1234, "Upendra", "Noida");
lEmp.Add(oemp);
oemp = new Emp(1934, "Rahul", "Noida");
lEmp.Add(oemp);
//.......
return lEmp;
}
protected void BindGridList()
{
GridView1.DataSource = GetEmpList();
GridView1.DataBind();
}
Here is a picture of my grid.
My question is how can I add a footer row thank you for your help.
We need to modify the following to achieve Footer controls in GridView.
1) GridView - Change to AutoGenerateColumns="False"
2) Add all the columns to the Grid in the design view with the TemplateField
3) Describe EditItemTemplate, ItemTemplate, FooterTemplate for the columns
4) In the code behind file, access the values using GridView1.FooterRow.FindControl
Sample ASPX Code
<asp:GridView ID="GridView1" AllowPaging="True" ShowFooter="True" PageSize="5" OnPageIndexChanging="GridView1_PageIndexChanging" OnRowEditing="GridView1_RowEditing"
runat="server" CellPadding="3" GridLines="None" CssClass="mGrid" PagerStyle-CssClass="pgr" AlternatingRowStyle-CssClass="alt"
OnRowCancelingEdit="GridView1_RowCancelingEdit" AutoGenerateColumns="False">
<AlternatingRowStyle CssClass="alt"></AlternatingRowStyle>
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:ImageButton ImageUrl="~/Images/edit.png" runat="server" CommandName="Edit" ToolTip="Edit" Width="20px" Height="20px" />
<asp:ImageButton ImageUrl="~/Images/delete.png" runat="server" CommandName="Delete" ToolTip="Delete" Width="20px" Height="20px" />
</ItemTemplate>
<EditItemTemplate>
<asp:ImageButton ImageUrl="~/Images/save.png" runat="server" CommandName="Update" ToolTip="Update" Width="20px" Height="20px" />
<asp:ImageButton ImageUrl="~/Images/cancel.png" runat="server" CommandName="Cancel" ToolTip="Cancel" Width="20px" Height="20px" />
</EditItemTemplate>
<FooterTemplate>
<asp:ImageButton ImageUrl="~/Images/addnew.png" runat="server" CommandName="AddNew" ToolTip="Add New" Width="20px" Height="20px" OnClick="btnAddNew_Click" />
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Id">
<EditItemTemplate>
<asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("Id") %>'></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Bind("Id") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Name">
<EditItemTemplate>
<asp:TextBox ID="TextBox2" runat="server" Text='<%# Bind("Name") %>'></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label2" runat="server" Text='<%# Bind("Name") %>'></asp:Label>
</ItemTemplate>
<FooterTemplate>
<asp:TextBox ID="txtNameFooter" runat="server"></asp:TextBox>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="City">
<EditItemTemplate>
<asp:TextBox ID="TextBox3" runat="server" Text='<%# Bind("City") %>'></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label3" runat="server" Text='<%# Bind("City") %>'></asp:Label>
</ItemTemplate>
<FooterTemplate>
<asp:TextBox ID="txtCityFooter" runat="server"></asp:TextBox>
</FooterTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
Sample Code Behind Code:
protected void btnAddNew_Click(object sender, EventArgs e)
{
TextBox txtName = GridView2.FooterRow.FindControl("txtNameFooter") as TextBox;
TextBox txtCity = GridView2.FooterRow.FindControl("txtCityFooter") as TextBox;
cmd.CommandText = $"INSERT INTO tblLocation(Name,City) VALUES('{txtName.Text}','{txtCity.Text}')";
}
I am extracting data from database in gridview, where I have given a link button "Edit" for editing the data of that row. However while editing , one of the columns(YEAR) of my gridview becomes a dropdown list. While fetching the data from database, the Column "Year" consists of label and in edit mode it gets changed to dropdownlist. Moreover I added a condition to make the link buttons appear/disappear based on the value of the Label "Year". When I edit the particular row it throws an error because as soon as edit command is called it converts the column into dropdownlist however the row_databound searches for label. It shows "Object not set to an instance....." PLease help
Aspx
<asp:GridView ID="gv1" runat="server" AutoGenerateColumns="False" BackColor="White" BorderColor="#3366CC" BorderStyle="None" BorderWidth="1px" CellPadding="4" DataSourceID="SqlDataSource2" OnRowDataBound="gv1_RowDataBound" OnRowUpdating="gv1_RowUpdating" DataKeyNames="tid" CssClass="auto-style1" Width="694px">
<Columns>
<asp:TemplateField HeaderText="Sr No">
<ItemTemplate>
<%#Container.DataItemIndex+1 %>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="tid" SortExpression="tid" Visible="false">
<ItemTemplate>
<asp:Label ID="lblID" runat="server" Text='<%# Bind("tid") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Title" SortExpression="title">
<EditItemTemplate>
<asp:TextBox ID="txtTitle1" runat="server" Text='<%# Bind("title") %>'></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="lblTitle" runat="server" Text='<%# Bind("title") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Category" SortExpression="category">
<ItemTemplate>
<asp:Label ID="lblCategory" runat="server" Text='<%# Bind("category") %>'></asp:Label></ItemTemplate>
<EditItemTemplate>
<asp:RadioButtonList ID="rbtnlist" runat="server"><asp:ListItem Text="Soft Skills"></asp:ListItem><asp:ListItem Text="Technical Skills"></asp:ListItem></asp:RadioButtonList>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Announced at" SortExpression="dt">
<ItemTemplate>
<asp:Label ID="lblDt" runat="server" Text='<%# Bind("dt", "{0:dd/MMM/yyyy HH:mm tt}") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Year" SortExpression="year">
<EditItemTemplate>
<asp:DropDownList ID="ddlyr" runat="server"></asp:DropDownList>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="lblyr" runat="server" Text='<%# Bind("year") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="User Id" SortExpression="userid">
<ItemTemplate>
<asp:Label ID="lblUid" runat="server" Text='<%# Bind("userid") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField ShowHeader="False">
<ItemTemplate>
<asp:LinkButton ID="btndel" runat="server" CausesValidation="False" CommandName="Delete" Text="Delete" OnClientClick="return isConfirm()" Visible="false"></asp:LinkButton>
<%--<asp:LinkButton ID="btnmail" runat="server" CausesValidation="False" OnClientClick="return isConfirm()" Text="Send Mail" Visible="false"></asp:LinkButton>--%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField ShowHeader="False">
<EditItemTemplate>
<asp:LinkButton ID="btnupdte" runat="server" CausesValidation="True" CommandName="Update" Text="Update"></asp:LinkButton>
<asp:LinkButton ID="btncncl" runat="server" CausesValidation="False" CommandName="Cancel" Text="Cancel"></asp:LinkButton>
</EditItemTemplate>
<ItemTemplate>
<asp:LinkButton ID="btnedit" runat="server" CausesValidation="False" CommandName="Edit" Text="Edit" Visible="false"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField ShowHeader="false">
<ItemTemplate>
<asp:LinkButton ID="btnmail" runat="server" CausesValidation="False" OnClientClick="return isConfirm()" Text="Send Mail" Visible="false"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<FooterStyle BackColor="#99CCCC" ForeColor="#003399" />
<HeaderStyle BackColor="#003399" Font-Bold="True" ForeColor="#CCCCFF" />
<PagerStyle ForeColor="#003399" HorizontalAlign="Left" BackColor="#99CCCC" />
<RowStyle BackColor="White" ForeColor="#003399" />
<SelectedRowStyle BackColor="#009999" Font-Bold="True" ForeColor="#CCFF99" />
<SortedAscendingCellStyle BackColor="#EDF6F6" />
<SortedAscendingHeaderStyle BackColor="#0D4AC4" />
<SortedDescendingCellStyle BackColor="#D6DFDF" />
<SortedDescendingHeaderStyle BackColor="#002876" />
</asp:GridView>
c#
protected void gv1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
Label lbly = (Label)e.Row.FindControl("lblyr");
if (lbly.Text == DateTime.Now.Year.ToString() || lbly.Text == ((DateTime.Now.Year)-1).ToString())
{
LinkButton btedt = (LinkButton)e.Row.FindControl("btnedit");
LinkButton btdel = (LinkButton)e.Row.FindControl("btndel");
LinkButton btsm = (LinkButton)e.Row.FindControl("btnmail");
btdel.Visible = true;
btedt.Visible = true;
btsm.Visible = true;
}
if ((e.Row.RowState & DataControlRowState.Edit) > 0) {
RadioButtonList rbtnlist = (RadioButtonList)e.Row.FindControl("rbtnlist");
DropDownList ddlist = (DropDownList)e.Row.FindControl("ddlyr");
for (int i = (DateTime.Now.Year); i >= ((DateTime.Now.Year)-1) ; i--)
{
ddlist.Items.Add(new ListItem(i.ToString(), i.ToString()));
}
ddlist.DataBind();
rbtnlist.DataBind();
}
}
}
I am assuming that you are binding your grid with a DataTable with colum name "Year". Try below code where dt refers to your Datatable:
protected void gv1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
int rowno = e.Row.DataItemIndex;
//Suppose dt is DataTable to which you are binding your grid
//and year is the column name within this datatable
string year = Convert.ToString(dt.Rows[e.Row.DataItemIndex]["year"]);
if (year == DateTime.Now.Year.ToString() || year == ((DateTime.Now.Year) - 1).ToString())
{
LinkButton btedt = (LinkButton)e.Row.FindControl("btnedit");
LinkButton btdel = (LinkButton)e.Row.FindControl("btndel");
LinkButton btsm = (LinkButton)e.Row.FindControl("btnmail");
btdel.Visible = true;
btedt.Visible = true;
btsm.Visible = true;
}
if ((e.Row.RowState & DataControlRowState.Edit) > 0)
{
RadioButtonList rbtnlist = (RadioButtonList)e.Row.FindControl("rbtnlist");
DropDownList ddlist = (DropDownList)e.Row.FindControl("ddlyr");
for (int i = (DateTime.Now.Year); i >= ((DateTime.Now.Year) - 1); i--)
{
ddlist.Items.Add(new ListItem(i.ToString(), i.ToString()));
}
ddlist.DataBind();
rbtnlist.DataBind();
}
}
I have a problem which in theory should be very simple but i spent 3 hours now not being able to figure it out. I have a gridview and lingdatasource and i try to implement custom paging. No matter what i do i seem to be stuck with a pagesize of 25! Code below
Thanks!
aspx page
<asp:GridView ID="gvCustomerList" SkinID="StandardGridView" AutoGenerateColumns="false" DataSourceID="LqCustomerSource"
AllowPaging="false" AllowSorting="false" PageSize="50" runat="server" OnSorting="gvCustomerList_OnSorting"
OnRowCommand="gvSupplierCustomerList_RowCommand">
<Columns>
<asp:TemplateField HeaderText="Customer Id" HeaderStyle-HorizontalAlign="Left" SortExpression="CustomerId">
<ItemTemplate>
<asp:Label ID="lblCustomerId" runat="server" Text='<%# ((ITB.DAL.LinqObjects.Customer)Container.DataItem).CustomerId %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="First Name" HeaderStyle-HorizontalAlign="Left" SortExpression="FirstName">
<ItemTemplate>
<asp:Label ID="lblFirstName" runat="server" Text='<%# ((ITB.DAL.LinqObjects.Customer)Container.DataItem).FirstName %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Last Name" HeaderStyle-HorizontalAlign="Left" SortExpression="LastName">
<ItemTemplate>
<asp:Label ID="lblLastName" runat="server" Text='<%# ((ITB.DAL.LinqObjects.Customer)Container.DataItem).LastName %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Details" HeaderStyle-HorizontalAlign="Left">
<ItemTemplate>
<asp:HyperLink ID="lnkDetails" Text="Details" NavigateUrl='<%# "~/BackOffice/Customers/CustomerDetails.aspx?CustomerId=" + ((ITB.DAL.LinqObjects.Customer)Container.DataItem).CustomerId %>' runat="server" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Ask" HeaderStyle-HorizontalAlign="Left">
<ItemTemplate>
<asp:HyperLink ID="lnkAsk" Text="Ask" NavigateUrl='<%# "~/BackOffice/Customers/Ask.aspx?CustomerId=" + ((ITB.DAL.LinqObjects.Customer)Container.DataItem).CustomerId %>' runat="server" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</div>
<asp:LinqDataSource ID="LqCustomerSource" AutoPage="false" runat="server"
OnSelecting="LqCustomerSource_Selecting" AutoSort="False">
</asp:LinqDataSource>
code behind
protected void LqCustomerSource_Selecting(object sender, LinqDataSourceSelectEventArgs e)
{
try
{
CustomerDataManager manager = new CustomerDataManager();
string searchName = "";// txtCustomerName.Text.Trim();
int count = 0;
List<Customer> customerList = manager.GetSelectedCustomers(gvCustomerList.PageIndex * 50, 50, searchName, SortExpression, SortDirectionForCustomers, out count);
//List<CustomerInsuranceInfo> infoList = manager.GetCustomerInsuranceDataFromList(customerList);
lblRows.Text = count.ToString();
e.Arguments.StartRowIndex = 0;
e.Arguments.MaximumRows = 50;
e.Arguments.TotalRowCount = count;
if (customerList == null)
e.Cancel = true;
else
e.Result = customerList;
}
catch (Exception ex)
{
ApplicationLogBO.Log(ex);
// Alert(WebsiteUtil.StandardErrorMessage);
e.Cancel = true;
}
}
Ok, it looks like you need to set it in the code behind in LqCustomerSource_Selecting
gvCustomerList.PageSize = 50
How can I find the controls lblCategoryName and ddlBlogCategory?
Here is my code:
protected void grdRetailStore_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
Label lblAccount = (Label)e.Row.FindControl("lblCategoryName");
string s = lblAccount.Text;
DropDownList ddlBlogCategory = (DropDownList)e.Row.FindControl("ddlBlogCategoty");
DAO.DAO dao_category = new DAO.DAO();
DataTable dt_blog_cat = dao_category.SelectCategory();
if (ddlBlogCategory != null)
{
// ddlBlogCategory.Items.Clear();
ddlBlogCategory.DataSource = dao_category.SelectCategory();
ddlBlogCategory.DataTextField = "CategoryName";
ddlBlogCategory.DataValueField = "BlogCategoryID";
ddlBlogCategory.DataBind();
}
}
}
<asp:GridView ID="grdRetailStore" runat="server" AutoGenerateColumns="false" DataKeyNames="PortalId" OnRowEditing="grdRetailStore_RowEditing"
OnRowCancelingEdit="grdRetailStore_RowCancelingEdit" OnRowDataBound="grdRetailStore_RowDataBound">
<Columns>
<asp:TemplateField HeaderText="ID">
<HeaderStyle Width="100px" Wrap="False" />
<EditItemTemplate>
<asp:Label ID="lblId" runat="server" Text='<%# Bind("PortalId") %>'></asp:Label>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="lblId" runat="server" Text='<%# Bind("PortalId") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="AdvertiserName">
<HeaderStyle Width="100px" Wrap="False" />
<EditItemTemplate>
<asp:TextBox ID="txtAdvName" runat="server" Text='<%# Bind("AdvertiserName") %>'></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="lblAdvName" runat="server" Text='<%# Bind("AdvertiserName") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="PromoCategory">
<HeaderStyle Width="100px" Wrap="False" />
<EditItemTemplate>
<%-- <asp:DropDownList ID="" runat="server" DataTextField="Account_Name" DataValueField="Account_Id"
AppendDataBoundItems="true">
<%-- <asp:ListItem Selected="True" Text="---Select---" Value="0"></asp:ListItem></asp:DropDownList> --%>
<asp:TextBox ID="txtPromoCat" runat="server" Text='<%# Bind("PromoCatId") %>'></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="lblPromoCat" runat="server" Text='<%# Bind("PromoCatId") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Start Date">
<HeaderStyle Width="100px" Wrap="False" />
<EditItemTemplate>
<asp:TextBox ID="txtPromostartdate" runat="server" Text='<%# Bind("PromoStartDate") %>'></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="lblPromostartdate" runat="server" Text='<%# Bind("PromoStartDate") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="End Date">
<HeaderStyle Width="100px" Wrap="False" />
<EditItemTemplate>
<asp:TextBox ID="txtPromoenddate" runat="server" Text='<%# Bind("PromoEndDate") %>'></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="lblPromoenddate" runat="server" Text='<%# Bind("PromoEndDate") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Html Code">
<HeaderStyle Width="100px" Wrap="False" />
<EditItemTemplate>
<asp:TextBox ID="txtHtml" runat="server" Text='<%# Bind("HtmlCode") %>'></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="lblHtml" runat="server" Text=""></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="CategoryName">
<HeaderStyle Width="100px" Wrap="False" />
<EditItemTemplate>
<asp:DropDownList ID="ddlBlogCategoty" runat="server" DataTextField="CategoryName" DataValueField="BlogCategoryID"
AppendDataBoundItems="true">
<asp:ListItem Selected="True" Text="---Select---" Value="0"></asp:ListItem></asp:DropDownList>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="lblCategoryName" runat="server" Text='<%# Bind("CategoryName") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Edit" ShowHeader="False">
<HeaderStyle Width="100px" Wrap="False" />
<EditItemTemplate>
<asp:LinkButton ID="lbkUpdate" runat="server" CausesValidation="True" CommandName="Update"
Text="Update" OnClientClick="return ValidateUpdate();"></asp:LinkButton>
<asp:LinkButton ID="lnkCancel" runat="server" CausesValidation="False" CommandName="Cancel"
Text="Cancel"></asp:LinkButton>
</EditItemTemplate>
<ItemTemplate>
<asp:LinkButton ID="lnkEdit" runat="server" CausesValidation="False" CommandName="Edit"
Text="Edit"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
Change your code behind and include check of RowState.
protected void grdRetailStore_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
if (e.Row.RowState == DataControlRowState.Normal)
{
Label lblAccount = (Label)e.Row.FindControl("lblCategoryName");
string s = lblAccount.Text;
}
if (e.Row.RowState == DataControlRowState.Edit)
{
DropDownList ddlBlogCategory = (DropDownList)e.Row.FindControl("ddlBlogCategoty");
if (ddlBlogCategory != null)
{
// ddlBlogCategory.Items.Clear();
ddlBlogCategory.DataSource = dao_category.SelectCategory();
ddlBlogCategory.DataTextField = "CategoryName";
ddlBlogCategory.DataValueField = "BlogCategoryID";
ddlBlogCategory.DataBind();
}
}
DAO.DAO dao_category = new DAO.DAO();
DataTable dt_blog_cat = dao_category.SelectCategory();
}
}