Develop Reference

retain visible property of control through paging of nested gridview

I have a grid view within a grid view. When I click on edit of parent grid view the child grid view displays a checkbox. When I click on next page button of child grid view the controls that were made visible become invisible again. This is not the behaviour I require. I would like the controls that are made visible by clicking edit to remain visible through paging of the child grid view while parent grid view is in edit mode.
My markup:
<asp:GridView
ID="grdImages"
runat="server"
AllowPaging="true"
ShowFooter="true"
PageSize="5"
AutoGenerateColumns="false"
OnPageIndexChanging="grdImages_PageIndexChanging"
OnRowCancelingEdit="grdImages_RowCancelingEdit"
OnRowCommand="grdImages_RowCommand"
OnRowEditing="grdImages_RowEditing"
OnRowUpdating="grdImages_RowUpdating"
OnRowDeleting="grdImages_RowDeleting"
EmptyDataText="No Data Available at this Time"
OnRowDataBound="grdImages_RowDataBound"
DataKeyNames="productID" RowStyle-VerticalAlign="Top" RowStyle-HorizontalAlign="Center">
<AlternatingRowStyle BackColor="White" ForeColor="#284775"></AlternatingRowStyle>
<Columns>
<asp:TemplateField AccessibleHeaderText="Product ID" HeaderText="Product ID" FooterText="Product ID">
<ItemTemplate>
<asp:Label ID="lblProdId" runat="server" Text='<%# Eval("ProductId") %>' ></asp:Label>
</ItemTemplate>
<FooterTemplate>
<asp:DropDownList ID="lstAddProdId" runat="server" AppendDataBoundItems="true" >
<asp:ListItem>Select a product</asp:ListItem>
</asp:DropDownList>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField AccessibleHeaderText="Product Main Image" FooterText="Product Main Image" HeaderText="Product Main Image">
<ItemTemplate>
<asp:Label ID="lblMainImgId" runat="server" Text='<%# Eval("ImageId") %>' ></asp:Label>
<asp:Label ID="lblMainImgName" runat="server" Text='<%# Eval("ImageName") %>' ></asp:Label> <br />
<asp:Image ID="imgMain" runat="server" Height="250" Width="250" ImageUrl='<%# Eval("ImagePath") %>' />
</ItemTemplate>
<EditItemTemplate>
<asp:Label runat="server" Font-Bold="true" Text="Current main image" ></asp:Label> <br />
<asp:Image ID="imgMain" runat="server" Height="250" Width="250" ImageUrl='<%# Eval("ImagePath") %>' /> <br />
<asp:Label runat="server" Font-Bold="true" Text="Upload a new image to replace the current main image." ></asp:Label> <br />
<asp:FileUpload ID="flupEditMain" runat="server" />
</EditItemTemplate>
<FooterTemplate>
<asp:FileUpload ID="flupMain" runat="server" AllowMultiple="false" />
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField AccessibleHeaderText="Supporting Images" FooterText="Supporting Images" HeaderText="Supporting Images">
<ItemTemplate>
<asp:Label ID="lblSupImages" runat="server" Visible="false" Font-Bold="true" Text="Select images to delete"></asp:Label><br />
<asp:GridView
ID="grdSupImages"
runat="server"
ShowHeader="false"
CellPadding="4"
ForeColor="#333333"
GridLines="None"
AutoGenerateColumns="False"
AllowPaging="true"
PageSize="4"
OnPageIndexChanging="grdSupImages_PageIndexChanging"
OnRowEditing="grdSupImages_RowEditing"
EnableViewState="true"
DataKeyNames="productID"
RowStyle-VerticalAlign="Top"
RowStyle-HorizontalAlign="Center"
EmptyDataText="No Supporting Images Found">
<AlternatingRowStyle BackColor="White" ForeColor="#284775"></AlternatingRowStyle>
<Columns>
<asp:TemplateField >
<ItemTemplate>
<asp:Image ID="imgSup" runat="server" ToolTip='<%# Eval("ImgId") %>' AlternateText='<%# Eval("ImageName") %>' ImageUrl='<%# Eval("ImagePath") %>' Height="125" Width="125" />
<asp:Label ID="imgSupName" runat="server" Text='<%# Eval("ImageName") %>' AssociatedControlID="imgSup"></asp:Label>
<asp:CheckBox ID="chkSupImages" runat="server" Visible="false" Text="Select Image" CommandName="Select" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
<EditRowStyle BackColor="#999999"></EditRowStyle>
<FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White"></FooterStyle>
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White"></HeaderStyle>
<PagerStyle HorizontalAlign="Center" BackColor="#284775" ForeColor="White"></PagerStyle>
<RowStyle BackColor="#F7F6F3" ForeColor="#333333"></RowStyle>
<SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333"></SelectedRowStyle>
<SortedAscendingCellStyle BackColor="#E9E7E2"></SortedAscendingCellStyle>
<SortedAscendingHeaderStyle BackColor="#506C8C"></SortedAscendingHeaderStyle>
<SortedDescendingCellStyle BackColor="#FFFDF8"></SortedDescendingCellStyle>
<SortedDescendingHeaderStyle BackColor="#6F8DAE"></SortedDescendingHeaderStyle>
</asp:GridView>
<div style="clear:both;"> </div>
<asp:Label ID="lblFlupSupImages" runat="server" Font-Bold="true" Text="Add extra images" Visible="false" />
<br />
<asp:FileUpload ID="flupSupImages" runat="server" AllowMultiple="true" Visible="false" />
</ItemTemplate>
<FooterTemplate>
<asp:FileUpload ID="flupExtra" runat="server" AllowMultiple="true" />
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Edit">
<ItemTemplate>
<asp:LinkButton ID="btnEdit" Text="Edit" runat="server" CommandName="Edit" />
<br />
<span onclick="return confirm('Are you sure you want to delete these images?')">
<asp:LinkButton ID="btnDelete" Text="Delete" runat="server" CommandName="Delete" />
</span>
</ItemTemplate>
<EditItemTemplate>
<asp:LinkButton ID="btnUpdate" Text="Update" runat="server" CommandName="Update" />
<br />
<asp:LinkButton ID="btnCancel" Text="Cancel" runat="server" CommandName="Cancel" />
</EditItemTemplate>
<FooterTemplate>
<asp:Button ID="btnAddRecord" runat="server" Text="Add" CommandName="Add"></asp:Button>
</FooterTemplate>
</asp:TemplateField>
</Columns>
<EditRowStyle BackColor="#999999"></EditRowStyle>
<FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White"></FooterStyle>
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White"></HeaderStyle>
<PagerStyle HorizontalAlign="Center" BackColor="#284775" ForeColor="White"></PagerStyle>
<RowStyle BackColor="#F7F6F3" ForeColor="#333333"></RowStyle>
<SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333"></SelectedRowStyle>
<SortedAscendingCellStyle BackColor="#E9E7E2"></SortedAscendingCellStyle>
<SortedAscendingHeaderStyle BackColor="#506C8C"></SortedAscendingHeaderStyle>
<SortedDescendingCellStyle BackColor="#FFFDF8"></SortedDescendingCellStyle>
<SortedDescendingHeaderStyle BackColor="#6F8DAE"></SortedDescendingHeaderStyle>
</asp:GridView>
My code behind:
protected void grdImages_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
GridView grd = (GridView)e.Row.FindControl("grdSupImages"); // find controls
Label prodId = (Label)e.Row.FindControl("lblProdId");
grd.ToolTip = prodId.Text;
int product = Convert.ToInt32(prodId.Text); // assign values to variables.
BindNestedGrid(product, grd); // call the function.
}
if (e.Row.RowType == DataControlRowType.DataRow && e.Row.RowIndex == grdImages.EditIndex)
{
//Find Child GridView
GridView supImagesGrd = (GridView)e.Row.Cells[2].FindControl("grdSupImages");
if (supImagesGrd != null)
{
// find grid header label and make visible
Label gridHead = (Label)e.Row.Cells[2].FindControl("lblSupImages");
gridHead.Visible = true;
// find fileupload header label and make visible.
Label fileUpHead = (Label)e.Row.Cells[2].FindControl("lblFlupSupImages");
fileUpHead.Visible = true;
// find fileupload control and make it visible.
FileUpload flup = (FileUpload)e.Row.Cells[2].FindControl("flupSupImages");
flup.Visible = true;
//Loop through the GridView
foreach (GridViewRow row in supImagesGrd.Rows)
{
if (row.RowType == DataControlRowType.DataRow)
{
//Find the CheckBox
CheckBox chb = (CheckBox)row.Cells[0].FindControl("chkSupImages");
if (chb != null)
{
chb.Visible = true;
}
}
}
}
}
}
protected void grdSupImages_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
GridView gv = (GridView)sender;
gv.PageIndex = e.NewPageIndex;
BindNestedGrid(Convert.ToInt32(gv.ToolTip), gv);
}
If any more information or code is required please let me know.

For anyone who wants to know, I disabled paging of the child grid when edit button is clicked so all check boxes show on all rows of child grid now.

'System.NullReferenceException' on control in footer row of gridview

I am trying to populate a drop down list in the footer row of a grid view. my mark up is as follows:
<asp:Label ID="lblGrdImages" runat="server" ></asp:Label>
<asp:GridView
ID="grdImages"
runat="server"
AllowPaging="true"
ShowFooter="true"
PageSize="5"
AutoGenerateColumns="false"
OnPageIndexChanging="grdImages_PageIndexChanging"
OnRowCancelingEdit="grdImages_RowCancelingEdit"
OnRowCommand="grdImages_RowCommand"
OnRowEditing="grdImages_RowEditing"
OnRowUpdating="grdImages_RowUpdating"
OnRowDeleting="grdImages_RowDeleting"
EmptyDataText="No Data Available at this Time" >
<AlternatingRowStyle BackColor="White" ForeColor="#284775"></AlternatingRowStyle>
<Columns>
<asp:TemplateField AccessibleHeaderText="Product ID" HeaderText="Product ID" FooterText="Product ID">
<ItemTemplate>
<asp:Label ID="lblProdId" runat="server" Text='<%# Eval("pi.ProductId") %>' ></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:Label ID="lblEditProdId" runat="server" Text='<%# Eval("pi.ProductId") %>' ></asp:Label>
</EditItemTemplate>
<FooterTemplate>
<asp:DropDownList ID="lstAddProdId" runat="server" AppendDataBoundItems="true" >
<asp:ListItem>Select a product</asp:ListItem>
</asp:DropDownList>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField AccessibleHeaderText="Product Main Image" FooterText="Product Main Image" HeaderText="Product Main Image">
<ItemTemplate>
<asp:Label ID="lblMainImgId" runat="server" Text='<%# Eval("pi.ImageId") %>' ></asp:Label>
<asp:Image ID="imgMain" runat="server" Height="250" Width="250" ImageUrl='<%# Eval("pi.ImagePath") %>' />
</ItemTemplate>
<FooterTemplate>
<asp:FileUpload ID="flupMain" runat="server" AllowMultiple="false" />
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField AccessibleHeaderText="Supporting Images" FooterText="Supporting Images" HeaderText="Supporting Images">
<ItemTemplate>
<h2>repeater here</h2>
</ItemTemplate>
<FooterTemplate>
<asp:FileUpload ID="flupExtra" runat="server" AllowMultiple="true" />
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Edit">
<ItemTemplate>
<asp:LinkButton ID="btnEdit" Text="Edit" runat="server" CommandName="Edit" />
<br />
<span onclick="return confirm('Are you sure you want to declare this product Discontinued?')">
<asp:LinkButton ID="btnDelete" Text="Delete" runat="server" CommandName="Delete" />
</span>
</ItemTemplate>
<EditItemTemplate>
<asp:LinkButton ID="btnUpdate" Text="Update" runat="server" CommandName="Update" />
<br />
<asp:LinkButton ID="btnCancel" Text="Cancel" runat="server" CommandName="Cancel" />
</EditItemTemplate>
<FooterTemplate>
<asp:Button ID="btnAddRecord" runat="server" Text="Add" CommandName="Add"></asp:Button>
</FooterTemplate>
</asp:TemplateField>
</Columns>
<EditRowStyle BackColor="#999999"></EditRowStyle>
<FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White"></FooterStyle>
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White"></HeaderStyle>
<PagerStyle HorizontalAlign="Center" BackColor="#284775" ForeColor="White"></PagerStyle>
<RowStyle BackColor="#F7F6F3" ForeColor="#333333"></RowStyle>
<SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333"></SelectedRowStyle>
<SortedAscendingCellStyle BackColor="#E9E7E2"></SortedAscendingCellStyle>
<SortedAscendingHeaderStyle BackColor="#506C8C"></SortedAscendingHeaderStyle>
<SortedDescendingCellStyle BackColor="#FFFDF8"></SortedDescendingCellStyle>
<SortedDescendingHeaderStyle BackColor="#6F8DAE"></SortedDescendingHeaderStyle>
</asp:GridView>
My code behind function to populate the drop down list:
protected void lstProducts()
{
// find dropdownlist in the footer row of the gridview
DropDownList prods = (DropDownList)grdImages.FooterRow.FindControl("lstAddProdId");
// define ado.net objects
SqlConnection con = new SqlConnection(connectionString);
SqlCommand cmd = new SqlCommand("ProductDetails.bnc_ProductImages", con);
cmd.CommandType = CommandType.StoredProcedure;
SqlDataReader reader;
// define the sp parameters
cmd.Parameters.Add(new SqlParameter("#Status", SqlDbType.VarChar, 50));
cmd.Parameters["#Status"].Value = "LstProds";
try
{
con.Open(); // try to connect to db.
reader = cmd.ExecuteReader(); // execut the reader
while (reader.Read())
{
ListItem item = new ListItem(); // create listitem
item.Text = reader["p.ProductName"].ToString(); // add product name to item text
item.Value = reader["p.ProductId"].ToString(); // add productId to item value
prods.Items.Add(item); // populate dropdown list.
}
}
catch (Exception err)
{
lblGrdImages.Text = err.Message; // display error message in a label
}
finally
{
con.Close(); // close the connection.
}
}
When I try to run it I get the following error:
An exception of type 'System.NullReferenceException' occurred in App_Web_su5rfbqf.dll but was not handled in user code
I am unsure as to why I am getting this exception. I am assuming it is not able to find the control in the grid view footer row but I do not know why. It may be a silly mistake somewhere but I cannot figure out what I should do
EDIT I am getting the error on this line of lstProducts():
DropDownList prods = (DropDownList)grdImages.FooterRow.FindControl("lstAddProdId");

You have to set Datasource to your gridView first.The error you are getting is at grdImages.FooterRow=null.Try populating the grdImages first and then try to access it.
Here is a similar example that does the same
<asp:GridView ID="GridView1" HeaderStyle-BackColor="#3AC0F2" HeaderStyle-ForeColor="White"
RowStyle-BackColor="#A1DCF2" AlternatingRowStyle-BackColor="White" AlternatingRowStyle-ForeColor="#000"
runat="server" AutoGenerateColumns="false" ShowFooter = "true" OnDataBound = "OnDataBound">
<Columns>
<asp:TemplateField HeaderText = "Name">
<ItemTemplate>
<asp:Label ID="lblName" runat="server" Text='<%# Eval("Name") %>' />
</ItemTemplate>
<FooterTemplate>
<asp:TextBox ID="txtName" runat="server" />
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText = "Country">
<ItemTemplate>
<asp:Label ID="lblName" runat="server" Text='<%# Eval("Country") %>' />
</ItemTemplate>
<FooterTemplate>
<asp:DropDownList ID="ddlCountries" runat="server">
</asp:DropDownList>
</FooterTemplate>
</asp:TemplateField>
</Columns>
protected void Page_Load(object sender, EventArgs e)
{
if (!this.IsPostBack)
{
DataTable dt = new DataTable();
dt.Columns.AddRange(new DataColumn[3] { new DataColumn("Id"), new DataColumn("Name"), new DataColumn("Country") });
dt.Rows.Add(1, "John Hammond", "United States");
dt.Rows.Add(2, "Mudassar Khan", "India");
dt.Rows.Add(3, "Suzanne Mathews", "France");
dt.Rows.Add(4, "Robert Schidner", "Russia");
GridView1.DataSource = dt;
GridView1.DataBind();
}
}
protected void OnDataBound(object sender, EventArgs e)
{
DropDownList ddlCountries = GridView1.FooterRow.FindControl("ddlCountries") as DropDownList;
}

How to disable LinkButton within GridViewclick from Client Side using JavaScript?

I have a GridView, In one column I have LinkButton control. I want to disable click from client side for certain condition on this column. Means for some rows it will not be possible for User to call onclick event and for some rows it is possible.
I want to achieve this from client side using javascript.
Or When User clicks on link, It will notify the User that this action can't be completed for this row.
<asp:GridView Width="100%" ShowHeader="true" ViewStateMode="Enabled" GridLines="Both" CellPadding="10" CellSpacing="5" ID="GridViewMultiplePOSAssociationId" runat="server" AllowSorting="false" AutoGenerateColumns="false" OnRowCommand="RewardGridMultiD_RowCommand"
AllowPaging="true" PageSize="8" OnRowDataBound="grdViewCustomers_OnRowDataBound" PagerSettings-Position="Top" PagerSettings-Mode="NumericFirstLast" PagerSettings-FirstPageText="First" PagerSettings-LastPageText="Last" DataKeyNames="POS Id">
<RowStyle CssClass="table_inner_text" BackColor="WhiteSmoke" BorderColor="CornflowerBlue" Wrap="true" ForeColor="Black" Height="30px" />
<HeaderStyle CssClass="table_head_text" />
<Columns>
<asp:TemplateField ItemStyle-Width="80px">
<ItemTemplate>
<a href="JavaScript:divexpandcollapse('div<%# Eval(" POS Id ") %>');">
<img alt="Details" id="imgdiv<%# Eval("POS Id") %>" src="images/plus.png" />
</a>
<div id="div<%# Eval(" POS Id ") %>" style="display: none;">
<asp:GridView ID="grdViewOrdersOfCustomer" runat="server" AutoGenerateColumns="false" CssClass="ChildGrid">
<RowStyle CssClass="table_inner_text" BackColor="SkyBlue" BorderColor="Black" Wrap="true" ForeColor="White" Height="30px" />
<Columns>
<asp:BoundField ItemStyle-Width="150px" DataField="RULE FILE NAME" HeaderText="RULE FILE NAME" />
<asp:BoundField ItemStyle-Width="150px" DataField="RULE ID" HeaderText="RULE ID" />
<asp:BoundField ItemStyle-Width="150px" DataField="RULE TYPE ID" HeaderText="RULE TYPE ID" />
<asp:BoundField ItemStyle-Width="150px" DataField="START TIME" HeaderText="START TIME" />
<asp:BoundField ItemStyle-Width="150px" DataField="EXPIRY TIME" HeaderText="EXPIRY TIME" />
</Columns>
</asp:GridView>
</div>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderStyle-Width="80px" ItemStyle-Width="80px" ItemStyle-HorizontalAlign="Center" HeaderText="Row Number">
<ItemTemplate>
<asp:Label ID="LabelRowNumberId" runat="server" Text='<%#Eval("Row Number") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderStyle-Width="80px" ItemStyle-Width="80px" ItemStyle-HorizontalAlign="Center" HeaderText="POS Id">
<ItemTemplate>
<asp:Label ID="LabelPOSID" runat="server" Text='<%#Eval("POS Id") %>'></asp:Label>
<%-- <asp:LinkButton ID="LinkbtnPOSId" CommandArgument='<%#Eval("POS Id") %>' CommandName="ClickPOS" Text='<%#Eval("POS Id") %>' runat="server" CausesValidation="false"></asp:LinkButton>--%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderStyle-Width="80px" ItemStyle-Width="250px" ItemStyle-HorizontalAlign="Center" HeaderText="Action">
<ItemTemplate>
<asp:LinkButton ID="HyperLinkAssociate" CommandArgument='<%#Eval("POS Id") %>' CommandName="Associate" Text="Associate" runat="server" OnClientClick="return OnClientClickAssociateRewardRuleFile(this);" CausesValidation="false"></asp:LinkButton>/
<asp:LinkButton ID="HyperLinkReplace" CommandArgument='<%#Eval("POS Id") %>' CommandName="Replace" Text="Replace" runat="server" OnClientClick="return OnClientClickReplaceRewardRuleFile(this);" CausesValidation="false"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderStyle-Width="80px" ItemStyle-Width="250px" ItemStyle-HorizontalAlign="Center" HeaderText="Status">
<ItemTemplate>
<asp:Label runat="server" ID="LabelStatusPendingPOSId" Text='<%#Eval("Status") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
In GridViewMultiplePOSAssociationId there is one column "Status" which has label LabelStatusPendingPOSId, LabelStatusPendingPOSId text is set Applied, Not Applied at the time of Binding. For Rows which has Status Applied, User should not be able to click on LinkButton Associate/Replace else He is allowed to click.

use this code OnRowDataBound for Your Grid
protected void grdViewCustomers_OnRowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType==DataControlRowType.DataRow)
{
LinkButton LinkbtnPOSId=(LinkButton)e.Row.FindControl("LinkbtnPOSId");
Label LabelStatusPendingPOSId = (Label)e.Row.FindControl("LabelStatusPendingPOSId");
Boolean boolStatus = LabelStatusPendingPOSId.Text == "Applied" ? true : false;
//LinkbtnPOSId.Attributes.Add("onclick", "function CheckStatus('" + boolStatus.ToString() + "')");
LinkbtnPOSId.Enabled = boolStatus;
}
}

Try this..
You can loop through the Gridview and make the particular control disable...
I am writing the code in javascript pageload function...
function PageLoad(sender, args)
{
for (var i = 0; i <= RowCount; i++)
{
document.getElementById('Gridview1_HyperLinkAssociate_' + i.toString() + '').disabled = true;
}
}
Set RowCount as the number of rows of the Gridview...

retrieve data by clicking on a gridview cell in asp.net using c#

I have a gridview
<asp:GridView ID="wbsdataGV1" runat="server" Width="790px" AutoGenerateColumns="False"
OnSelectedIndexChanged="wbsdataGV1_SelectionChanged" DataKeyNames="WBSCode">
<Columns>
<asp:TemplateField HeaderText="WBS Code">
<ItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" Text='<%# Eval("WBSCode") %>'></asp:LinkButton>
</ItemTemplate>
<ControlStyle Width="100px" />
<ItemStyle BorderStyle="Solid" BorderWidth="1px" />
</asp:TemplateField>
<asp:TemplateField HeaderText="Description">
<ItemTemplate>
<asp:TextBox ID="TextBox40" runat="server" Text='<%# Eval("Description") %>' ReadOnly="true"
Width="300px">
</asp:TextBox>
</ItemTemplate>
<ControlStyle Width="300px" />
<ItemStyle BorderStyle="Solid" BorderWidth="1px" />
</asp:TemplateField>
<asp:TemplateField HeaderText="Territory Code">
<ItemTemplate>
<asp:Label ID="Label45" runat="server" Text='<%# Eval("TerritoryCode") %>'></asp:Label>
</ItemTemplate>
<ControlStyle Width="100px" />
<ItemStyle BorderStyle="Solid" BorderWidth="1px" />
</asp:TemplateField>
<asp:TemplateField HeaderText="Amount">
<ItemTemplate>
<asp:Label ID="Label46" runat="server" Text='<%# Eval("AmountReleased") %>'></asp:Label>
</ItemTemplate>
<ControlStyle Width="100px" />
<ItemStyle BorderStyle="Solid" BorderWidth="1px" />
</asp:TemplateField>
</Columns>
<HeaderStyle BackColor="Wheat" BorderStyle="Solid" BorderWidth="1px" />
<RowStyle BorderStyle="Solid" BorderWidth="1px" HorizontalAlign="Center"
</asp:GridView>
now in the link button i want to click it and retrieve that row's data in the same page and show it...
i am using
protected void wbsdataGV1_SelectionChanged(object sender, EventArgs e)
{
string rowID = (string)this.wbsdataGV1.SelectedDataKey.Value;
con.Open();
SqlCommand cmd = new SqlCommand(" select WBSCode,Description,TerritoryCode,AmountReleased from WBS where WBSCode='"+rowID+"'");
cmd.Connection = con;
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataTable dt = new DataTable();
da.Fill(dt);
if (dt.Rows.Count > 0)
{
wbssearchdata1.DataSource = dt;
wbssearchdata1.DataBind();
}
con.Close();
}
this code but its not firing on the click .. so how can i solve this.. any help?

From your code I couldn't see anywhere you specified the button that fires the SelectedIndexChanged event. You'll need to do these
<asp:GridView OnSelectedIndexChanged="wbsdataGV1_SelectionChanged"
AutoGenerateSelectButton="true" />
Or
<asp:GridView OnSelectedIndexChanged="wbsdataGV1_SelectionChanged">
<Columns>
<asp:CommandField ShowSelectButton="true" />
</Columns>
</asp:GridView>
Or
<asp:GridView OnSelectedIndexChanged="wbsdataGV1_SelectionChanged">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:LinkButton runat="server" ID="Selecting" CommandName="Select" Text="Select Row"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>

ASP.NET Gridview RowUpdating event not firing

HTML Page:
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional" ChildrenAsTriggers="true">
<ContentTemplate>
<asp:GridView ID="Grd_Threshold" runat="server" CellPadding="4" ForeColor="#333333"
GridLines="Both" AutoGenerateColumns="false" EmptyDataText="No Records." PageSize="8"
AllowPaging="true" OnPageIndexChanging="Grd_Threshold_PageIndexChanging" OnRowCommand="Grd_Threshold_RowCommand"
DataKeyNames="ID" AutoGenerateEditButton="true" OnRowCancelingEdit="Grd_Threshold_RowCancelingEdit" OnRowEditing="Grd_Threshold_RowEditing"
OnRowUpdating="Grd_Threshold_RowUpdating">
<Columns>
<asp:TemplateField HeaderText="No.">
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("ID") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Name" ItemStyle-Width="150px">
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("CLNAME") + ", " + Eval("CFNAME") +" " +Eval("CMNAME")%>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Doctor" ItemStyle-Width="150px">
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("DOCTORNAME")%>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Item Name" ItemStyle-Width="150px">
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("INAME")%>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Item Form" ItemStyle-Width="100px">
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("IFORM")%>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Item Strength" ItemStyle-Width="100px">
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("ISTRG")%>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Order Date" ItemStyle-Width="100px">
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("ORDERDATE")%>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Price" ItemStyle-Width="80px">
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("PRICE")%>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Quantity" ItemStyle-Width="80px">
<EditItemTemplate>
<asp:TextBox ID="Txt_Qty" runat="server" Width="50px" Text='<%# Eval("QTY")%>'></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("QTY")%>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="User" ItemStyle-Width="100px">
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("USERID")%>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<RowStyle BackColor="#E3EAEB" />
<FooterStyle BackColor="#1C5E55" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="#666666" ForeColor="White" HorizontalAlign="Center" />
<SelectedRowStyle BackColor="#C5BBAF" Font-Bold="True" ForeColor="#333333" />
<HeaderStyle BackColor="#1C5E55" Font-Bold="True" ForeColor="White" />
<EditRowStyle BackColor="#7C6F57" />
<AlternatingRowStyle BackColor="White" />
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
CS Code:
protected void Page_Load(object sender, EventArgs e)
{
try
{
Title = "Dashboard";
if (!Master.Page.IsPostBackEventControlRegistered)
{
BindGrid();
}
}
catch (Exception ex)
{
Common.WriteLog(ex);
}
}
private void BindGrid()
{
try
{
if (SessionUtility.DashboardRecords == null || SessionUtility.DashboardRecords.Rows.Count == 0)
{
string WebServiceUrl = SessionUtility.WebServiceUrl + "/GetAllOrders/";
JsonArrayCollection ReqResponse = Common.GetWebServiceResponse_MultipleValues(WebServiceUrl, "GET");
DataTable Patients = Common.ConvertJsonArrayObjectCollectionToDataTable(ReqResponse);
SessionUtility.DashboardRecords = Patients;
}
if (SessionUtility.UserRight != "1")
{
//Grd_Threshold.Columns[0].Visible = false;
Grd_Threshold.AutoGenerateEditButton = false;
}
else if (SessionUtility.UserRight == "1")
{
Grd_Threshold.AutoGenerateEditButton = true;
}
Grd_Threshold.DataSource = SessionUtility.DashboardRecords;
Grd_Threshold.DataBind();
UpdatePanel1.Update();
}
catch (Exception ex)
{
Common.WriteLog(ex);
}
}
Hi All,
In above written code only EDIT event is being fired & that is only once after that UPDATE,CANCEL no event is being fired. What am i doing wrong?All I want to do is change the GridRow Color on the basis of the value entered in QTY field.

I figured out the problem. The event was not firing because of the same IDs that i had given to the Label in each row. Hope this helpful to someone.

Not sure about your use of IsPostBackEventControlRegistered - I havent seen it used before but it seems that probably you are wiping out your update event by DataBind() every time in Page_Load().
Page_Load is fired every time the page loads which is then changing what the page is doing by resetting the grid.
Try wrapping the control in:
if(!IsPostBack)
{
// bind
}
so that it only does this on the first page load.