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Asp.net Webforms GridView on row click

I am trying to do a thing, so, when I click on the GridView Row I want to send the CommandArgument, for now, I am doing with linkbuttons and I want to get rid of that, I want the user to click only the row and then it sends the CommanArgument.
At the moment this is my code:
<asp:GridView ID="jj" runat="server" AllowPaging="true" AllowSorting="false"
AutoGenerateColumns="false" CssClass="mGrid" GridLines="None" PagerStyle-CssClass="pgr"
AlternatingRowStyle-CssClass="alt" OnPageIndexChanging="gridView_PageIndexChanging" PageSize="10" EmptyDataText="Não existem dados para mostrar">
<Columns>
<asp:TemplateField HeaderText="Pré Ordens">
<ItemTemplate>
<asp:LinkButton ID="PreOrdens" OnClientClick="ddd();" onClick="SEND_ID_REGISTO" CommandArgument = '<%# Eval("ID_REGISTO_BASE") %>' Text='<%# Eval("TIPO_Registo") %>' runat="server"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Descrição do Erro">
<ItemTemplate>
<asp:LinkButton ID="DescricaoErro" OnClientClick="ddd();" onClick="SEND_ID_REGISTO" CommandArgument = '<%# Eval("ID_REGISTO_BASE") %>' Text='<%# Eval("Erro") %>' runat="server"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="NUV">
<ItemTemplate>
<asp:LinkButton ID="NUV" OnClientClick="ddd();" onClick="SEND_ID_REGISTO" CommandArgument = '<%# Eval("ID_REGISTO_BASE") %>' Text='<%# Eval("NUV") %>' runat="server"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="TV">
<ItemTemplate>
<asp:LinkButton ID="ErroID" OnClientClick="ddd();" onClick="SEND_ID_REGISTO" CommandArgument = '<%# Eval("ID_REGISTO_BASE") %>' Text='<%# Eval("TV") %>' runat="server"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
This is the C#:
protected void SEND_ID_REGISTO(object sender, EventArgs e)
{
id = Convert.ToInt32(((LinkButton)sender).CommandArgument);
}
This is not the full code, is just the necessary, but yea, I need to send the command argument on the row click not on the linkbutton click.

you must use the RowCreated-Event of the GridView and You must add this on every postback . .
For example
protected void GridView1_RowCreated(object sender, System.Web.UI.WebControls.GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow) {
e.Row.Attributes["onmouseover"] = "this.style.cursor='pointer';this.style.textDecoration='underline';";
e.Row.Attributes["onmouseout"] = "this.style.textDecoration='none';";
e.Row.ToolTip = "select row";
e.Row.Attributes["onclick"] = this.Page.ClientScript.GetPostBackClientHyperlink(this.GridView1, "Select$" + e.Row.RowIndex);
}
}

Fetching Cell Value From GridView in Custom Method ASP.NET using C#

I have a GridView with Template Fields and Connection String is located in the
web.config File. Data is fetched by a stored procedure. I want to retrieve a single cell value of the Gridview in protected void someMethod(object sender, EventArgs e) on OnClick="someMethod" event. But it ends up with:
Object reference not set to an instance of an object.
Code that generates the OnClick Event:
<asp:TemplateField >
<ItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" OnClick="someMethod">Get Name</asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
The value of Gridview Cell i want to get is:
<asp:TemplateField HeaderText="Name">
<EditItemTemplate>
<asp:TextBox ID="forNames" runat="server"></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="eForNames" runat="server" Text = '<%# Eval("Name") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
And Code Behind is:
protected void someMethod(object sender, EventArgs e)
{
Label ename = diplayAdapter.SelectedRow.FindControl("eForNames") as Label;
Label5.Text = ename.Text;
}

.ASPX Code:
<asp:TemplateField >
<ItemTemplate>
<asp:LinkButton ID="LinkButton1" CommandArgument="<%# Container.DisplayIndex %>" runat="server" CommandName="FindName">Get Name</asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Name">
<EditItemTemplate>
<asp:TextBox ID="forNames" runat="server"></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="eForNames" runat="server" Text = '<%# Eval("Name") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
.CS Code
protected void GridView1_OnRowCommand(object sender, GridViewCommandEventArgs e)
{
try
{
//getting rowindex which we have selected by using CommandArgument
int rowindex = Convert.ToInt32(e.CommandArgument);
if (e.CommandName == "FindName")
{
Label5.Text= GridView1.Rows[rowindex].Cells[1].FindControl("eForNames");
}
}
catch (Exception ex)
{
Response.Write(ex);
}
}

Remove Hyperlink of specif cell in gridview

I've created a gridview, which all values (footer included) are hyperlinks, to export a detail in Excel.
All is working fine, except, when the value is 0, I don't want to permit the hyperlink, so it doesn't create a empty excel.
<asp:GridView ID="dtlist" runat="server" CellPadding="0" CssClass="table tabela caixa " CellSpacing="0" OnRowDataBound="dtlist_RowDataBound" AutoGenerateColumns="false" GridLines="Vertical" BorderStyle="Solid" ShowFooter="true" >
<Columns >
<asp:TemplateField HeaderText="Name">
<ItemTemplate>
<asp:Label ID="Label2" runat="server" Text='<%# Eval("name") %>'></asp:Label>
</ItemTemplate>
<FooterTemplate>
<asp:Label ID="LabelT" runat="server" Text="Total"></asp:Label>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Value">
<ItemTemplate>
<asp:HyperLink runat="server" ID="lnkA" NavigateUrl='<%# String.Format("/Export?name={0}, Eval("name")) %>' Text='<%# Eval("value","{0:#####,##0.00 €}") %>' />
<asp:Label runat="server" ID="lblA" Text='<%# Eval("value","{0:#####,##0.00 €}") %>' Visible="false" />
</ItemTemplate>
<ItemStyle CssClass="alinha-direita" />
<FooterTemplate>
<asp:HyperLink runat="server" ID="lnkTA" />
</FooterTemplate>
<FooterStyle CssClass="alinha-direita" />
<HeaderStyle CssClass="alinha-meio" />
</asp:TemplateField>
</Columns>
</asp:GridView>
This is the RowDataBound:
protected void dtlist_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.Header)
{
Total = 0;
}
if (e.Row.RowType == DataControlRowType.DataRow)
{
HyperLink hA = (HyperLink)e.Row.FindControl("lnkA");
Label lA = (Label)e.Row.FindControl("lblA");
if (hA.Text.ToDecimal() == 0)
{
hA.Visible = false;
lA.Visible = true;
}
Total += ((DataRowView)e.Row.DataItem).Row["Ano0"].ToDecimal();
}
if (e.Row.RowType == DataControlRowType.Footer)
{
HyperLink tA = (HyperLink)e.Row.FindControl("lnkTA");
tA.NavigateUrl = String.Format("/ExportStock?name={0}","ZZZZ");
tA.Text = Total0.StringEuro();
}
}
I've tried to ask on the e.Row.RowType == DataControlRowType.DataRow, if the value of the Hyperlink is 0, but if one value on the column is 0 it disables all hyperlinks on that column.
How can I remove only for the 0 cell?
Thanks.
CODE UPDATED

GridView header text not showing when binded dynamically for first time

I have a GridView, which is populated using a linq query on button click.
I have to populate the header text dynamically, fetching from the database. The first time I click the button, the header text is not binding. But, if I click on the button a second time, the header texts are bound.
Markup:
<asp:GridView ID="grdresult" runat="server" AutoGenerateColumns="false"
OnRowDataBound="grdresult_RowDataBound">
<Columns>
<asp:TemplateField HeaderStyle-Width="10%">
<ItemTemplate>
<asp:Label ID="lblCol1" runat="server" Text=' <%#Eval("Col1") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderStyle-Width="10%">
<ItemTemplate>
<asp:Label ID="lblCol2" runat="server" Text='<%#Eval("Col2") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderStyle-Width="10%">
<ItemTemplate>
<asp:Label runat="server" Text='<%#Eval("Col3") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderStyle-Width="10%">
<ItemTemplate>
<asp:Label ID="lblCol4" runat="server" Text=' <%#Eval("Col4") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderStyle-Width="10%">
<ItemTemplate>
<asp:Label ID="lblCol5" runat="server" Text='<%#Eval("Col5") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderStyle-Width="10%">
<ItemTemplate>
<asp:Label ID="lblCol6" runat="server" Text=' <%#Eval("Col6") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderStyle-Width="10%">
<ItemTemplate>
<asp:Label ID="lblCol7" runat="server" Text=' <%#Eval("Col7") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderStyle-Width="10%">
<ItemTemplate>
<asp:Label ID="lblCol8" runat="server" Text=' <%#Eval("Col8") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<EmptyDataTemplate>
No Records Found
</EmptyDataTemplate>
</asp:GridView>
Codebehind:
protected void btnreport_Click(object sender, EventArgs e)
{
BindGrid();
}
protected void BindGrid()
{
var results = "LINQ select query from database";
}).Distinct().ToList();
for (int i = 0; i < grdresult.Columns.Count; i++)
{
grdresult.Columns[i].Visible = true;
}
grdresult.DataSource = results;
grdresult.DataBind();
}
protected void grdresult_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.Header)
{
var getColumnHeader = "LINQ query to get header text";
if (getColumnHeader != null)
{
grdresult.Columns[5].HeaderText = getColumnHeader.HCol3;
grdresult.Columns[6].HeaderText = getColumnHeader.HCol4;
grdresult.Columns[7].HeaderText = getColumnHeader.HCol5;
grdresult.Columns[8].HeaderText = getColumnHeader.HCol6;
grdresult.Columns[9].HeaderText = getColumnHeader.HCol7;
grdresult.Columns[10].HeaderText = getColumnHeader.HCol8;
grdresult.Columns[11].HeaderText = getColumnHeader.HCol9;
grdresult.Columns[12].HeaderText = getColumnHeader.HCol10;
}
}
//based on some condition i have set visibility of gridview columns
int TotalColumnCount = (int)ViewState["colcount"];
for (int i = grdresult.Columns.Count - 1; i > TotalColumnCount + 4; i--)
{
grdresult.Columns[i].Visible = false;
}
}

Instead of using the below line for binding header text
grdresult.Columns[5].HeaderText = getColumnHeader.HCol3;
i used below line which solved the issue.
e.Row.Cells[5].Text = getColumnHeader.HCol3;

This error can also occur if you are dumping an integer value into varchar() but the size of varchar is not enough. For example I was getting this error as I was cast sum() to varchar(10), and hence the error.
I changed varchar(10) to varchar(20) and the error got resolved.

In Gridview control set ClientIDMode = "Static"

Changing the footer text in GridView

I can't seem to be able to change the footer text. I've tried the sorted event as well but nothing happens. All I want to do is display status messages. Here is my code:
protected void PageSettings_Sorting(object sender, GridViewSortEventArgs e)
{
if (((GridView)sender).EditIndex > -1)
{
e.Cancel = true;
}
else
{
// tried this on sorted aswell but can't change footer text
GridViewRow row = ((GridView)sender).FooterRow as GridViewRow;
Label lblStatus = new Label{ ID="lblStatus", Text="Sorting Column <b>\"" + e.SortExpression + "\" " + e.SortDirection + "</b>"};
row.Cells[0].Text = "Hello World"; //.Controls.Add(lblStatus);
}
}
protected void PageSettings_RowCreated(object sender, GridViewRowEventArgs e)
{
if (e.Row != null && e.Row.RowType == DataControlRowType.Header)
{
}
else if (e.Row != null && e.Row.RowType == DataControlRowType.Footer)
{
int count = e.Row.Cells.Count;
for (int i = count - 1; i >= 1; i += -1)
{
e.Row.Cells.RemoveAt(i);
}
e.Row.Cells[0].ColumnSpan = count;
e.Row.Cells[0].Controls.Add(new Literal { ID = "lblStatus" });
// can't FindControl or change Literals either
e.Row.Cells[0].Text = "Hello World"; // works here but not on sorting event
}
}
<asp:GridView ID="PageSettings" runat="server"
AllowPaging="true" AllowSorting="true"
AutoGenerateColumns="false"
AutoGenerateDeleteButton="true"
AutoGenerateEditButton="true"
ShowFooter="true"
DataSourceID="ObjectDataSourcePages"
OnLoad="PageSettings_Load"
OnRowDataBound="PageSettings_DataBound"
OnRowCreated="PageSettings_RowCreated"
OnRowEditing="PageSettings_RowEditing"
OnRowCancelingEdit="PageSettings_RowCancelingEdit"
OnPageIndexChanging="PageSettings_PageIndexChanging"
OnSorting="PageSettings_Sorting"
OnSorted="PageSetting_Sorted"
PageSize="2">
<Columns>
<asp:TemplateField HeaderText="Page Name" HeaderStyle-HorizontalAlign="Left" SortExpression="Name">
<ItemTemplate>
<%# Eval("Name") %>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="Name" runat="server" Text='<%# Bind("Name") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Path" HeaderStyle-HorizontalAlign="Left" SortExpression="Path">
<ItemTemplate>
<%# Eval("Path") %>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="Path" runat="server" Text='<%# Bind("Path") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Route Value" HeaderStyle-HorizontalAlign="Left" SortExpression="RouteValue">
<ItemTemplate>
<%# Eval("RouteValue") %>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="RouteValue" runat="server" Text='<%# Bind("RouteValue") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="RegExp" HeaderStyle-HorizontalAlign="Left" SortExpression="RegExp">
<ItemTemplate>
<%# Eval("RegExp") %>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="RegExp" runat="server" Text='<%# Bind("RegExp") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>

This will change the text of the first FooterRow cell:
protected void gv_Sorting(object sender, GridViewSortEventArgs e)
{
gv.FooterRow.Cells[0].Text = "Hello";
}
Of course you'll need to make sure your GridView's ShowFooter property is true.
Or alternatively, by casting sender and adding a control:
protected void Sorting(object sender, GridViewSortEventArgs e)
{
Label label = new Label();
label.Text = gv_s.Rows.Count.ToString() + " records";
((GridView)sender).FooterRow.Cells[0].Controls.Add(label);
}