Develop Reference

Image is not displaying after adding items to the cart

Failed to load resource: the server responded with a status of 404 ()
System.Byte[]:1
This error is coming on inspecting it
protected void AllData()
{
if (Session["AddProduct"].ToString() == "true")
{
Session["AddProduct"] = "false";
DataTable dt = new DataTable();
DataRow dr;
dt.Columns.Add("ImageID");
dt.Columns.Add("ImageName");
dt.Columns.Add("ImageFile");
dt.Columns.Add("Price");
if (Request.QueryString["Id"] != null)
{
if (Session["Buyitems"] == null)
{
dr = dt.NewRow();
string cont = #"";
SqlConnection sqlcon = new SqlConnection(cont);
SqlCommand cmd = new SqlCommand();
string query = "select * from tblclothes where ImageID=" + Request.QueryString["Id"];
cmd.CommandText = query;
cmd.Connection = sqlcon;
SqlDataAdapter da = new SqlDataAdapter();
da.SelectCommand = cmd;
DataSet ds = new DataSet();
da.Fill(ds);
dr["ImageID"] = ds.Tables[0].Rows[0]["ImageID"].ToString();
dr["ImageName"] = ds.Tables[0].Rows[0]["ImageName"].ToString();
dr["ImageFile"] = ds.Tables[0].Rows[0]["ImageFile"].ToString();
dr["Price"] = ds.Tables[0].Rows[0]["Price"].ToString();
dt.Rows.Add(dr);
gvproducts.DataSource = dt;
gvproducts.DataBind();
Session["buyitems"] = dt;
}
this is the code
protected static string ReturnEncodedBase64UTF8(object rawImg)
{
string img = "data:image/jpg;base64,{0}"; //change image type if need be
string toEncodeAsBytes = rawImg.ToString();
string returnValue = System.Convert.ToString(toEncodeAsBytes);
return String.Format(img, returnValue);
}
<asp:GridView ID="gvproducts" OnRowDataBound="gvproducts_RowDataBound" ShowFooter="true" HeaderStyle-BackColor="Blue"
HeaderStyle-ForeColor="White" OnRowDeleting="gvproducts_RowDeleting" runat="server" AutoGenerateColumns="false"
EmptyDataText="No Data Available" FooterStyle-Font-Bold="true" Width="400px">
<Columns>
<%--<asp:BoundField DataField="S.No" HeaderText="S.No" />--%>
<asp:BoundField DataField="ImageId" HeaderText="Image Id" />
<asp:BoundField DataField="ImageName" HeaderText="Image Name" />
<%--<asp:ImageField DataImageUrlField="ImageFile" HeaderText="Image"></asp:ImageField>--%>
<asp:TemplateField HeaderText="Image">
<ItemTemplate>
<%--<img src='../Images/ <%# Eval("ImageFile") %>' id="img" runat="server" />--%>
<asp:Image ID="img" runat="server" ImageUrl='<%# "data:Image/png;base64," + Eval("ImageFile") %>' />
</ItemTemplate>
</asp:TemplateField>
<%--<asp:BoundField DataField="OriginalFormat" HeaderText="Format" />--%>
<asp:TemplateField HeaderText="Price">
<ItemTemplate>
<asp:Label ID="lblprice" runat="server" Text='<%# Eval("Price") %>'></asp:Label>
</ItemTemplate>
<FooterTemplate>
<asp:Label ID="lblTotalPrice" runat="server" Text="Total Price"></asp:Label>
</FooterTemplate>
</asp:TemplateField>
<asp:CommandField ShowDeleteButton="True" ButtonType="Button" />
</Columns>
</asp:GridView>

Regarding you case, you need to do the following:
When getting the DataRow, you need to cast it to Byte[] and convert it to a Base64 string like this:
dr["ImageFile"] = Convert.ToBase64String((Byte[])ds.Tables[0].Rows[0]["ImageFile"]);
Once you have the Base64 string, then you can apply it to your control like this:
<img src='data:image/jpg;base64, <%# Eval("ImageFile")%>' />

set values to TextBox in Item template of gridview

I'm working with Outward Challan Detail, in which I need to show the results on a form by a gridview.
My problem is that I don't know how to assign values to textbox existing in the gridview.
How could I assign values in the textbox inside my templates fields that are in my gridview by using dataReader or DataSet?
Here is my aspx
<div id="OutDCItemDetails" runat="server" style="overflow:auto">
<asp:Panel ID="PanelOutDCItemDetails" runat="server">
<asp:GridView ID="gvOutDCItemDetails" runat="server" AllowPaging="True"
PageSize="6" AutoGenerateColumns="False"
onrowdatabound="gvOutDCItemDetails_RowDataBound"
onrowcommand="gvOutDCItemDetails_RowCommand"
onselectedindexchanged="gvOutDCItemDetails_SelectedIndexChanged"
BackColor="White" BorderColor="White" BorderStyle="Ridge" BorderWidth="2px"
CellPadding="3" CellSpacing="1" GridLines="None" DataKeyNames="Item_Id" >
<Columns>
<asp:CommandField ShowDeleteButton="True" />
<asp:BoundField HeaderText="Item Id" DataField="Item_Id" />
<asp:BoundField HeaderText="Item Name" DataField="IName" />
<asp:BoundField HeaderText="Net Quantity" DataField="I_Quantity" />
<asp:BoundField DataField="Remaining_Qty" HeaderText="Remaining Quantity" />
<asp:TemplateField HeaderText="Process">
<ItemTemplate>
<asp:DropDownList ID="ddrProcess" runat="server" >
</asp:DropDownList>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Dispatch Quantity">
<ItemTemplate>
<asp:TextBox ID="txtDispatchQuantity" runat="server" AutoPostBack="true" OnTextChanged="TextChanged_txtDispatchQuantity"></asp:TextBox></ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Remaining Quantity">
<ItemTemplate>
<asp:TextBox ID="txtRamainingQuantity" runat="server"></asp:TextBox></ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Rate">
<ItemTemplate>
<asp:TextBox ID="txtRate" runat="server" AutoPostBack="true" OnTextChanged="txtRate_TextChanged"></asp:TextBox></ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Amount">
<ItemTemplate>
<asp:TextBox ID="txtAmount" runat="server"></asp:TextBox></ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:Label ID="lblStatus" runat="server" Text="Status"></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<FooterStyle BackColor="#C6C3C6" ForeColor="Black" />
<HeaderStyle BackColor="#4A3C8C" Font-Bold="True" ForeColor="#E7E7FF" />
<PagerStyle BackColor="#C6C3C6" ForeColor="Black" HorizontalAlign="Right" />
<RowStyle BackColor="#DEDFDE" ForeColor="Black" />
<SelectedRowStyle BackColor="#9471DE" Font-Bold="True" ForeColor="White" />
<SortedAscendingCellStyle BackColor="#F1F1F1" />
<SortedAscendingHeaderStyle BackColor="#594B9C" />
<SortedDescendingCellStyle BackColor="#CAC9C9" />
<SortedDescendingHeaderStyle BackColor="#33276A" />
</asp:GridView>
Here is my C# code
protected void gvOutDC_SelectedIndexChanged1(object sender, EventArgs e)
{
if (gvOutDC.SelectedIndex >= 0)
{
btnsave.Enabled = false;
btnInword.Visible = false;
OutDC.Visible = true;
OutDCItemDetails.Visible = true;
View.Visible = false;
InwordDetails.Visible = false;
txtOutId.Visible = true;
txtoutCode.Enabled = false;
btn.Visible = true;
txtcustcode.Enabled = false;
btnsave.Enabled = true;
txtOutId.Text = gvOutDC.SelectedDataKey[0].ToString();
txtoutCode.Text = gvOutDC.SelectedRow.Cells[2].Text.ToString();
txtDate.Text =gvOutDC.SelectedRow.Cells[8].Text.ToString();
txtCustomerId.Text = gvOutDC.SelectedRow.Cells[5].Text.ToString();
txtcustcode.Text = gvOutDC.SelectedRow.Cells[7].Text.ToString();
txtCustomerName.Text = gvOutDC.SelectedRow.Cells[6].Text.ToString();
int inworditem = Convert.ToInt16(gvOutDC.SelectedRow.Cells[3].Text.ToString());
SqlCommand cmd = new SqlCommand("sp_getOutDCmaterialDetail",con1);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("#outDCid", txtOutId.Text);
cmd.Parameters.AddWithValue("#inwordItem", inworditem);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
//.Text = ds.Tables[0].Rows[0][0].ToString();
con1.Open();
//SqlDataReader dr=cmd.ExecuteReader();
//if (dr.HasRows)
//{
// while (dr.Read())
// {
// }
//}
gvOutDCItemDetails.DataSource = ds;
gvOutDCItemDetails.DataBind();
OutDCItemDetails.Visible = true;
}
}
protected void gvOutDCItemDetails_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
//if ((e.Row.RowState & DataControlRowState.Edit) > 0)
//{
DropDownList ddList = (DropDownList)e.Row.FindControl("ddrProcess");
//bind dropdownlist
SqlCommand cmd = new SqlCommand("sp_getProcess", con1);
cmd.CommandType = CommandType.StoredProcedure;
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
DataTable dt = ds.Tables[0];
//DataTable dt = con1.GetData("Select category_name from category");
ddList.DataSource = dt;
ddList.DataTextField = "PName";
ddList.DataValueField = "Process_Id";
ddList.DataBind();
ddList.Items.Insert(0,new ListItem("--SELECT--","0"));
TextBox txtDispatchQuantity = (TextBox)e.Row.FindControl("txtDispatchQuantity");
txtDispatchQuantity.Text = ds.Tables[0].Rows[0][3].ToString();
TextBox txtRamainingQuantity = (TextBox)e.Row.FindControl("txtRamainingQuantity");
txtRamainingQuantity.Text = ds.Tables[0].Rows[0][3].ToString();
TextBox txtRate = (TextBox)e.Row.FindControl("txtRate");
txtRate.Text = ds.Tables[0].Rows[0][3].ToString();
TextBox txtAmount = (TextBox)e.Row.FindControl("txtAmount");
txtAmount.Text = ds.Tables[0].Rows[0][3].ToString();
}
if (e.Row.RowType == DataControlRowType.Footer)
{
// Label lblTotalPrice = (Label)e.Row.FindControl("Total_Amount");
//lblTotalPrice.Text = total.ToString();
// txttotalAmount.Text = Total.ToString();
}
}

You should directly bind the DataTable Column to TextBox inside the TemplateField like...
<asp:TextBox ID="txtDispatchQuantity" runat="server" Text='<%# Eval("ColumnNameInDataSetTable") %>' />
This directly binds the values to TextBoxes. You can do this for all other TextBoxes.

TextBox txtDispatchQuantity = (TextBox)e.Row.FindControl("txtDispatchQuantity");
var dataRow = (DataRowView)e.Row.DataItem;
var Dispatch_Qty = "Dispatch_Qty";
var check = dataRow.Row.Table.Columns.Cast<DataColumn>().Any(x => x.ColumnName.Equals(Dispatch_Qty, StringComparison.InvariantCultureIgnoreCase));
if (check)
{
// Property available
txtDispatchQuantity.Text =ds1.Tables[0].Rows[0][7].ToString();
}

protected void gvOutDCItemDetails_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
//if ((e.Row.RowState & DataControlRowState.Edit) > 0)
//{
DropDownList ddList = (DropDownList)e.Row.FindControl("ddrProcess");
//bind dropdownlist
SqlCommand cmd = new SqlCommand("sp_getProcess", con1);
cmd.CommandType = CommandType.StoredProcedure;
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
DataTable dt = ds.Tables[0];
//DataTable dt = con1.GetData("Select category_name from category");
ddList.DataSource = dt;
ddList.DataTextField = "PName";
ddList.DataValueField = "Process_Id";
ddList.DataBind();
ddList.Items.Insert(0,new ListItem("--SELECT--","0"));
TextBox txtDispatchQuantity = (TextBox)e.Row.FindControl("txtDispatchQuantity");
var dataRow = (DataRowView)e.Row.DataItem;
var Dispatch_Qty = "Dispatch_Qty";
var check = dataRow.Row.Table.Columns.Cast<DataColumn>().Any(x => x.ColumnName.Equals(Dispatch_Qty, StringComparison.InvariantCultureIgnoreCase));
if (check)
{
// Property available
txtDispatchQuantity.Text =ds1.Tables[0].Rows[0][7].ToString();
}
}
if (e.Row.RowType == DataControlRowType.Footer)
{
// Label lblTotalPrice = (Label)e.Row.FindControl("Total_Amount");
//lblTotalPrice.Text = total.ToString();
// txttotalAmount.Text = Total.ToString();
}
}

A short way with Simple and Inner Select, For use in ASPX code with no Code Behind:
....
<ItemTemplate>
<tr>
<td>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("COrder") %>' />
</td>
<td>
<asp:Label ID="TitleLabel" runat="server" Text='<%# Eval("CText") %>' />
</td>
<td>
Delete
</td>
</tr>
</ItemTemplate>
....
<asp:SqlDataSource ID="SqlDataSource2" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString %>" SelectCommand="SELECT [RId],[CId],[COrder],[CText]=(SELECT [Title] from [Categories] where [ID]=[HomeProduct].[CId]) FROM [HomeProduct] ORDER BY [COrder] DESC"></asp:SqlDataSource>

I want to do sorting on based on column of gridview, but event is not firing when I click on header of HeaderTemplete

I have created one gridview with custom column and want to perform sorting on them. When I click on column then no event is firing for sorting.
Below is the code which I have written
For .aspx page
<asp:GridView ID="grdConfigureCustomers" runat="server" AlternatingRowStyle- BackColor="Aqua" Width="1300px"
OnRowCommand="grdConfigureCustomers_RowCommand" OnRowEditing="grdConfigureCustomers_RowEditing"
OnRowUpdating="grdConfigureCustomers_RowUpdating" OnRowCancelingEdit="grdConfigureCustomers_RowCancelingEdit"
AutoGenerateColumns="false" AllowPaging="true" PageSize="5"
OnRowDeleting="grdConfigureCustomers_RowDeleting" ShowFooter="true"
onpageindexchanging="grdConfigureCustomers_PageIndexChanging" OnSorting="grdConfigureCustomers_Sorting" AllowSorting="true">
<HeaderStyle BackColor="AliceBlue" />
<Columns>
<asp:TemplateField HeaderText="Customer ID">
<ItemTemplate>
<asp:Label ID="lblCustomerId" runat="server" Text='<%# Eval("Customer_ID") %>'></asp:Label>
</ItemTemplate>
<FooterTemplate>
<asp:TextBox ID="txtAddCustomerId" runat="server"></asp:TextBox><span style="color:Red;">*</span>
</FooterTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
For .aspx.cs page
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
LoadCustomerConfigurationGridView();
}
}
private void LoadCustomerConfigurationGridView()
{
DataTable dt = new DataTable();
dt = sqlHelper.GetCustomerListInformation();
grdConfigureCustomers.DataSource = dt;
grdConfigureCustomers.DataBind();
Session["data"] = dt;
}
private void LoadCustomerConfigurationGridView(string srtexpr, string direc)
{
DataTable dt = new DataTable();
dt = sqlHelper.GetCustomerListInformation();
DataView dv = new DataView(dt);
dv.Sort = srtexpr + " " + direc;
grdConfigureCustomers.DataSource = dv;
grdConfigureCustomers.DataBind();
Session["data"] = dt;
}
protected void grdConfigureCustomers_Sorting(object sender, GridViewSortEventArgs e)
{
switch (e.SortExpression)
{
case "DateLogged":
if (e.SortDirection == SortDirection.Ascending)
{
LoadCustomerConfigurationGridView("DateLogged", "ASC");
}
else
{
LoadCustomerConfigurationGridView();
}
break;
}
}
Please let me know what I missed for sorting. Thanks in advance.

You need to specify the SortExpression property in the TemplateField like this:
<asp:TemplateField HeaderText="Customer ID" SortExpression="Customer_ID">

You need to enable sorting. EnableSorting="true" in your asp.net:Gridview.

Gridview popout window to edit when clicked on a column

I have a gridview. I need to include a hyperlink to one of the columns so when the user clicks the link a popout should come with option to Edit and save. After the save the gridview should automatically get refreshed.
Following is my Gridview Code:
<asp:GridView ID="EmployeeGridView" runat="server" AutoGenerateColumns="False"
DataKeyNames="Emp_id" onrowcancelingedit="EmployeeGridView_RowCancelingEdit"
onrowediting="EmployeeGridView_RowEditing" onrowdeleting="EmployeeGridView_RowDeleting"
onrowupdating="EmployeeGridView_RowUpdating" Width="395px"
CellPadding="4" ForeColor="#333333" GridLines="None"
onrowdatabound="EmployeeGridView_RowDataBound" AllowPaging="True"
onpageindexchanging="EmployeeGridView_PageIndexChanging1" PageSize="5">
<AlternatingRowStyle BackColor="White" />
<Columns>
<asp:TemplateField HeaderText = "Action">
<ItemTemplate>
<asp:CheckBox ID = "chkDelete" runat = "server" AutoPostBack="True"
oncheckedchanged="chkDelete_CheckedChanged" />
<br />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Sr.No">
<ItemTemplate>
<asp:Label ID = "lblID" runat = "server" Text = '<%#Container.DataItemIndex+1 %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Name">
<ItemTemplate>
<asp:Label ID = "lblEmpName" runat = "server" Text = '<%# Eval("Emp_name") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txtempname" runat="server" Text='<%#Eval("Emp_name") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Experience">
<ItemTemplate>
<asp:Label ID = "lblEmpExp" runat = "server" Text = '<%# Eval("Emp_exp") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txtempexp" runat="server" Text='<%#Eval("Emp_exp") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Address">
<ItemTemplate>
<asp:Label ID = "lblEmpAddress" runat = "server" Text = '<%# Eval("Emp_address") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txtempaddress" runat="server" Text='<%#Eval("Emp_address") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:CommandField ShowEditButton="true" ButtonType ="Button"
HeaderText="Edit" ControlStyle-BackColor= "#15524A" >
<ControlStyle BackColor="#15524A"></ControlStyle>
</asp:CommandField>
<asp:CommandField ShowDeleteButton="true" ButtonType="Button" HeaderText="Delete" />
</Columns>
<EditRowStyle BackColor="#7C6F57" />
<FooterStyle BackColor="#1C5E55" Font-Bold="True" ForeColor="White" />
<HeaderStyle BackColor="#1C5E55" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="#666666" ForeColor="White" HorizontalAlign="Center" />
<RowStyle BackColor="#E3EAEB" />
<SelectedRowStyle BackColor="#C5BBAF" Font-Bold="True" ForeColor="#333333" />
<SortedAscendingCellStyle BackColor="#F8FAFA" />
<SortedAscendingHeaderStyle BackColor="#246B61" />
<SortedDescendingCellStyle BackColor="#D4DFE1" />
<SortedDescendingHeaderStyle BackColor="#15524A" />
</asp:GridView>
The code behind is :
public partial class _Default : System.Web.UI.Page
{
SqlConnection connstr = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString);
protected void EmployeeGridView_Sorting(object sender, GridViewSortEventArgs e)
{
Session["sortBy"] = e.SortExpression;
FillGrid();
}
protected void Page_Load(object sender, EventArgs e)
{
Session["sortBy"] = null;
if (!Page.IsPostBack)
{
FillGrid();
BindGrid();
}
}
public void FillGrid()
{
SqlConnection con = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString);
con.Open();
SqlCommand cmd = new SqlCommand("GetEmployeeInfo", con);
SqlDataReader dr = cmd.ExecuteReader();//it reads froword only data from database
DataTable dt = new DataTable();//object of data table that uses to conatin whole data
dt.Load(dr);//Sql Data reader data load in data table it is DataTable Method.
EmployeeGridView.DataSource = dt;
EmployeeGridView.DataBind();
}
private void BindGrid()
{
string constr = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
using (SqlConnection con = new SqlConnection(constr))
{
using (SqlCommand cmd = new SqlCommand())
{
cmd.CommandText = "select Id, Name from tblFiles";
cmd.Connection = con;
con.Open();
GridView1.DataSource = cmd.ExecuteReader();
GridView1.DataBind();
con.Close();
}
}
}
protected void EmployeeGridView_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
EmployeeGridView.EditIndex = -1;
FillGrid();
}
protected void EmployeeGridView_RowEditing(object sender, GridViewEditEventArgs e)
{
EmployeeGridView.EditIndex = e.NewEditIndex;
FillGrid();
}
protected void EmployeeGridView_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
int empid = Convert.ToInt32(EmployeeGridView.DataKeys[e.RowIndex].Value.ToString());//Get Each Row unique value from DataKeyNames
string name = ((TextBox)EmployeeGridView.Rows[e.RowIndex].FindControl("txtempname")).Text;//get TextBox Value in EditItemTemplet that row is clicked
string experience = ((TextBox)EmployeeGridView.Rows[e.RowIndex].FindControl("txtempexp")).Text;
string address = ((TextBox)EmployeeGridView.Rows[e.RowIndex].FindControl("txtempaddress")).Text;
SqlConnection con = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString);
con.Open();
SqlCommand cmd = new SqlCommand("EmployeeUpdate", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("#emp_id ", empid);
cmd.Parameters.AddWithValue("#emp_name ", name);
cmd.Parameters.AddWithValue("#emp_exp ", experience);
cmd.Parameters.AddWithValue("#emp_address ", address);
cmd.ExecuteNonQuery();//Sql Command Class method return effected rows use for insert,update, delete
EmployeeGridView.EditIndex = -1;// no row in edit mode
FillGrid();
}
protected void EmployeeGridView_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
int empid = Convert.ToInt32(EmployeeGridView.DataKeys[e.RowIndex].Value.ToString());
SqlConnection con = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString);
con.Open();
SqlCommand cmd = new SqlCommand("DeleteEmployee", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("#emp_id ", empid);
cmd.ExecuteNonQuery();
FillGrid();
}
protected void EmployeeGridView_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
EmployeeGridView.PageIndex = e.NewPageIndex;
FillGrid();
}
protected void buttonDelete_Click(object sender, EventArgs e)
{
foreach (GridViewRow row in EmployeeGridView.Rows)
{
var chk = row.FindControl("chkDelete") as CheckBox;
if (chk.Checked)
{
var lblID = row.FindControl("lblID") as Label;
Response.Write(lblID.Text + "<br>");
SqlConnection conn = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString);
SqlCommand comm = new SqlCommand("Delete from tbl_employee where Emp_id=#emp_id", conn);
// comm.CommandType = CommandType.StoredProcedure;
conn.Open();
comm.Parameters.AddWithValue("#emp_id", int.Parse(lblID.Text));
comm.ExecuteNonQuery();
conn.Close();
}
}
FillGrid();
}
protected void buttonUpdate_Click(object sender, EventArgs e)
{
foreach (GridViewRow row in EmployeeGridView.Rows)
{
var chk = row.FindControl("chkDelete") as CheckBox;
if (chk.Checked)
{
SqlConnection conn = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString);
var lblID = row.FindControl("lblID") as Label;
var lblEmpName = row.FindControl("lblEmpName") as Label;
var lblEmpExp = row.FindControl("lblEmpExp") as Label;
var lblEmpAddress = row.FindControl("lblEmpAddress") as Label;
//Response.Write(lblFirstName.Text + "<br>");
SqlCommand comm = new SqlCommand("EmployeeUpdate", conn);
comm.CommandType = CommandType.StoredProcedure;
comm.Parameters.AddWithValue("#emp_id", int.Parse(lblID.Text));
comm.Parameters.AddWithValue("#emp_name", EmpName.Text);
comm.Parameters.AddWithValue("#emp_exp", EmpExp.Text);
comm.Parameters.AddWithValue("#Emp_address", EmpAddress.Text);
conn.Open();
comm.ExecuteNonQuery();
conn.Close();
EmpName.Visible = false;
EmpExp.Visible = false;
EmpAddress.Visible = false;
}
}
FillGrid();
}
}
For the column Name I need to make a hyperlink and when clicked the popout should come to edit and view data

Not sure I fully understand what do you need but you can check out how modal popup works in MS AJAX toolkit and try to emulate sample code that comes with the download.

How to bind a GridView from code behind and update the same

I check many sites and referred many codes before I could post a questions here. I am facing lot of confusions seeing them. Here is my problem.
I have a GridView and I have bound it from code behind as :
public void BindData()
{
SqlCommand comd = new SqlCommand("SELECT * FROM " + Label2.Text + "", con);
SqlDataAdapter da = new SqlDataAdapter(comd);
DataTable dt = new DataTable();
da.Fill(dt);
GridView2.DataSource = dt;
GridView2.DataBind();
}
And my asp.net for the same looks like :
<asp:GridView ID="GridView1" runat="server" ForeColor="#333333"
AutoGenerateEditButton="True" DataKeyNames="Locations"
onrowcancelingedit="GridView1_RowCancelingEdit"
onrowdatabound="GridView1_RowDataBound"
onrowediting="GridView1_RowEditing" onrowupdating="GridView1_RowUpdating">
<FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
<Columns>
<asp:TemplateField HeaderText="Locations">
<ItemTemplate>
<asp:Label ID="LblLocations" runat="server" Text='<%#Eval("Locations") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Lamp_Profile1">
<ItemTemplate>
<asp:Label ID="LblLamp_Profile1" runat="server" Text='<%#Eval("Lamp_Profile1") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:Label ID="LblEditLamp_Profile1" runat="server" Text='<%#Eval("Lamp_Profile1") %>'></asp:Label>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Fan_Profile1">
<ItemTemplate>
<asp:Label ID="LblFan_Profile1" runat="server" Text='<%#Eval("Fan_Profile1") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:Label ID="LblEditFan_Profile1" runat="server" Text='<%#Eval("Fan_Profile1") %>'></asp:Label>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="AC_Profile1">
<ItemTemplate>
<asp:Label ID="LblAC_Profile1" runat="server" Text='<%#Eval("AC_Profile1") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:Label ID="LblEditAC_Profile1" runat="server" Text='<%#Eval("AC_Profile1") %>'></asp:Label>
</EditItemTemplate>
</asp:TemplateField>
</Columns>
<PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
<SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<EditRowStyle BackColor="#999999" />
<AlternatingRowStyle BackColor="White" ForeColor="#284775" />
</asp:GridView>
And I have written my GridView1_RowCancelingEdit like:
protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
e.Cancel = true;
GridView1.EditIndex = -1;
}
And my GridView1_RowEditing looks like:
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
GridView1.EditIndex = e.NewEditIndex;
BindData();
}
And my GridView1_RowUpdating looks like:
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
GridView1.EditIndex = e.RowIndex;
Label Locations = GridView1.Rows[e.RowIndex].FindControl("LblLocations") as Label;
//ViewState["Locations_Instance"] = Locations.Text;
Label Lamp_Profile1 = GridView1.Rows[e.RowIndex].FindControl("LblLamp_Profile1") as Label;
Label Fan_Profile1 = GridView1.Rows[e.RowIndex].FindControl("LblFan_Profile1") as Label;
Label AC_Profile1 = GridView1.Rows[e.RowIndex].FindControl("LblAC_Profile1") as Label;
string query = "UPDATE " + Label3.Text + " SET Lamp_Profile1 ='" + Lamp_Profile1 + "', Fan_Profile1 ='" + Fan_Profile1 + "', AC_Profile1 ='" + AC_Profile1 + "' WHERE Locations = '" + Locations + "'";
com = new SqlCommand(query, con);
con.Open();
com.ExecuteNonQuery();
con.Close();
GridView1.EditIndex = -1;
BindData();
//lbldisplay.Text = "Updated Successfully";
}
From this I am getting what ever row I am binding using template field as well as database columns in my GridView and Once I click on Edit in the GridView, the whole GridView disappears.
Please help me.

You can find the textbox that is generated on edit event in the RowUpdating event below and assign it to a string variable.
Then have a seperate function to update the values entered and finally call your BindGrid() function which again binds the gridview..
Note: I'm using stored procedure to update my DB table.
protected void grdKeywords_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
GridViewRow row = (GridViewRow)grdKeywords.Rows[e.RowIndex];
TextBox txtKeyword = row.FindControl("txtGridKeyword") as TextBox;
string keyword = string.Empty;
keyword = txtKeyword.Text;
UpdateKeyword(keyword.ToLower());
}
public int UpdateKeyword(string strKeyword)
{
SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["DBConnection"].ToString());
SqlCommand cmdUpdateKeyword = BuildCommand(conn, "proc_UpdateKeyword");
cmdUpdateKeyword.Parameters.AddWithValue("#Keyword", strKeyword);
conn.Open();
int i = Convert.ToInt32(cmdUpdateKeyword.ExecuteScalar());
conn.Close();
BindGrid();
}

To manually specify columns for the gridview you have to set AutoGenerateColumns="false". Now you can specify the columns that you want in your GridView. You can use both "BoundFields" & "TemplateFields" now. As shown below.
<asp:GridView ID="GridView1" AutoGenerateColumns="false" runat="server">
<Columns>
<asp:BoundField DataField="column1" HeaderText="Column1" SortExpression="" />
<asp:BoundField DataField="column2" HeaderText="Column2" SortExpression="" />
<asp:TemplateField SortExpression="points">
<HeaderTemplate>HELLO</HeaderTemplate>
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Bind("hello") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
Now you can use:
GridView.RowDataBound Event to bind data to the data row.
void GridView1_RowDataBound(Object sender, GridViewRowEventArgs e)
{
if(e.Row.RowType == DataControlRowType.DataRow)
{
Label Label1= ((Label)e.Row.FindControl("Label1"));
Label1.Text = "YOURDATA";
}
}

if you call BindData in page load then do that:
if (!IsPostBack)
BindData();
That might solve your problem...
Cheers

public int UpdateKeyword(string strKeyword)
{
SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["DBConnection"].ToString());
SqlCommand cmdUpdateKeyword = BuildCommand(conn, "proc_UpdateKeyword");
cmdUpdateKeyword.Parameters.AddWithValue("#Keyword", strKeyword);
conn.Open();
int i = Convert.ToInt32(cmdUpdateKeyword.ExecuteScalar());
conn.Close();
BindGrid();
}

Make sure you have EnableViewState="true" set in your GridView. It solved disapperance-issue in my case.

try this ..
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
GridView1.EditIndex = e.RowIndex;
GridViewRow row = (GridViewRow)GridView1.Rows[e.RowIndex];
TextBox PrStyle = (TextBox)row.FindControl("PrStyle");
TextBox PrID = (TextBox)row.FindControl("PrID");
GridView1.EditIndex = -1;
SqlCommand cmd = new SqlCommand("Update dt Set PrStyle='" + PrStyle + "',PrID='" + PrID + "'");
}