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On Gridview RowCommand button text is not getting changed in ASP.NET using C#

I want to update the text of the btn_Update which is inside the EditTemplate of gridview. For that I wrote the code shown here. But the text is still shown as Reject, even if I am trying to update the text to Approve.
Here's my markup and code:
<asp:GridView ID="rptHotoIPDataInfo" runat="server" AutoGenerateColumns="False" CssClass="table table-bordered nowrap tblrptHotoIPDataInfo"
AllowPaging="True" PageSize="20" OnPageIndexChanging="rptHotoIPDataInfo_PageIndexChanging"
DataKeyNames="SAP_ID" OnRowEditing="rptHotoIPDataInfo_RowEditing" OnRowUpdating="rptHotoIPDataInfo_RowUpdating"
OnRowCancelingEdit="rptHotoIPDataInfo_RowCancelingEdit" OnRowDataBound="rptHotoIPDataInfo_RowDataBound"
OnRowCommand="rptHotoIPDataInfo_RowCommand">
<Columns>
<asp:TemplateField HeaderText="Approved / Reject" ItemStyle-Width="80px"> <%--"Accepted/Rejected (By default checked means approved)"--%>
<ItemTemplate >
<asp:CheckBox ID="chkRow" runat="server" Checked="true" Width="5px" OnCheckedChanged="chkRow_CheckedChanged"
AutoPostBack="true" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Action" ItemStyle-Width="120px">
<ItemTemplate>
<asp:Button ID="btn_Edit" runat="server" Text="Reject" CommandName="Edit" Enabled="false" CssClass="btn btn-blue" CommandArgument="<%# Container.DataItemIndex %>" />
</ItemTemplate>
<EditItemTemplate>
<asp:Button ID="btn_Update" runat="server" Text="Reject" CommandName="Update" CssClass="btn btn-blue" />
<asp:Button ID="btn_Cancel" runat="server" Text="Cancel" CommandName="Cancel" CssClass="btn btn-blue" />
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Rejected Remarks" ItemStyle-Width="150px">
<ItemTemplate>
<asp:Label ID="lblRemarks" runat="server" Text='<%#Eval("REJECT_REMARKS") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txtRemarks" runat="server" Text='<%#Eval("REJECT_REMARKS") %>' Width="150px" CssClass="form-control"></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="ID" ItemStyle-Width="50px">
<ItemTemplate>
<asp:Label ID="lbl_ID" runat="server" Text='<%#Eval("ID") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="SAP_ID" HeaderText="SAP ID">
<ItemStyle CssClass="labelbold" Width="100px" />
</asp:BoundField>
<asp:BoundField DataField="CR_NO" HeaderText="Description" Visible="False">
<ItemStyle CssClass="labelbold" Width="100px" />
</asp:BoundField>
<asp:BoundField DataField="R4GSTATE_CODE" HeaderText="State Code">
<ItemStyle CssClass="labelbold" Width="30px" />
</asp:BoundField>
<asp:BoundField DataField="HOTO_STATUS" HeaderText="Hoto Status">
<ItemStyle CssClass="labelbold" Width="50px" />
</asp:BoundField>
<asp:BoundField DataField="CR_Justifications" HeaderText="CR Justifications">
<ItemStyle CssClass="labelbold" Width="100px" />
</asp:BoundField>
<asp:BoundField DataField="APPROVE_REJECT" HeaderText="Status">
<ItemStyle CssClass="labelbold" Width="10px" />
</asp:BoundField>
<asp:BoundField DataField="REJECTED_BY" HeaderText="Last Updated by">
<ItemStyle CssClass="labelbold" Width="10px" />
</asp:BoundField>
</Columns>
</asp:GridView>
And the code behind is:
protected void rptHotoIPDataInfo_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "Edit")
{
int rowIndex = Convert.ToInt32(e.CommandArgument);
GridViewRow row = rptHotoIPDataInfo.Rows[rowIndex];
string name = row.Cells[9].Text;
var clickedButton = e.CommandSource as Button;
var clickedRow = clickedButton.NamingContainer as GridViewRow;
var clickedUserName = clickedRow.Cells[9].Text;
if (clickedUserName == "Approved")
{
clickedButton.Text = "Reject";
}
else if (clickedUserName == "REJECTED")
{
clickedButton.Text = "Approve"; // this statement is not updating the text
}
}
}

System.ArgumentOutOfRangeException on my RowDataBound

This code return the error "System.ArgumentOutOfRangeException". I know this error but my gridView have 13 columns and I read the column 2 and 4 so I don't understand...
Only e.Row.Cells[0] works so I can't read the other columns.
I looked on the forum but I can not find my problem. Often this problem is due to the fact that the person tries to read a column that does not exist, this is not my case.
protected void grd_accident_RowDataBound(object sender, GridViewRowEventArgs e)
{
//Check CM
if (e.Row.Cells[1].Text.Equals("false"))
{
e.Row.Cells[1].Text = "<span class='glyphicon glyphicon-remove' aria-hidden='true'></span>";
}
else
{
e.Row.Cells[1].Text = "<span class='glyphicon glyphicon-ok' aria-hidden='true'></span>";
}
////Check HSE
if (e.Row.Cells[3].Text.Equals("2"))
{
e.Row.Cells[3].Text = "<span class='glyphicon glyphicon-remove' aria-hidden='true'></span>";
}
else
{
e.Row.Cells[3].Text = "<span class='glyphicon glyphicon-ok' aria-hidden='true'></span>";
}
}
If it can help, my gridView :
<asp:GridView ID="grd_accident" runat="server" CellPadding="4" AutoGenerateColumns="False"
AllowPaging="True"
CssClass="mGrid"
PagerStyle-CssClass="pgr"
AlternatingRowStyle-CssClass="alt" DataSourceID="ATP_rechercheRes" OnRowDataBound="grd_accident_RowDataBound" OnRowCommand="grd_accident_RowCommand">
<AlternatingRowStyle CssClass="alt"></AlternatingRowStyle>
<Columns>
<asp:BoundField DataField="columna" HeaderText="Type" SortExpression="columna" />
<asp:BoundField DataField="columnb" HeaderText="ID" ReadOnly="True" SortExpression="columnb" />
<asp:BoundField DataField="columnc" ItemStyle-Width="90px" HeaderText="Date" SortExpression="columnc" />
<asp:BoundField DataField="columnd" HeaderText="Heure" SortExpression="columnd" />
<asp:BoundField DataField="columne" HeaderText="Nom" SortExpression="columne" />
<asp:BoundField DataField="columnf" HeaderText="Prénom" SortExpression="columnf" />
<asp:BoundField DataField="columng" HeaderText="Badge" SortExpression="columng" />
<asp:BoundField DataField="columnh" HeaderText="Société" SortExpression="columnh" />
<asp:BoundField DataField="columni" HeaderText="Description" SortExpression="columni" />
<asp:BoundField DataField="columnj" ItemStyle-HorizontalAlign="Center" HeaderText="Code EPI" SortExpression="columnj" />
<asp:BoundField DataField="columnk" ItemStyle-HorizontalAlign="Center" HeaderText="Advisor" SortExpression="columnk" />
<asp:BoundField DataField="columnl" ItemStyle-HorizontalAlign="Center" HeaderText="HSE" SortExpression="columnl" />
<asp:TemplateField ItemStyle-Width="130px">
<ItemTemplate>
<asp:ImageButton ID="btn_goToAccidentInfirmiere" ImageUrl="images/infirmerie.png" Width="37px" runat="server"
CommandName="goToAccidentInfirmiere"
CommandArgument="<%# ((GridViewRow) Container).RowIndex %>"
Text="Infirmière ►" />
<asp:ImageButton ID="btn_goToAccidentCm" ImageUrl="images/factory.png" Width="37px" runat="server"
CommandName="goToAccidentCm"
CommandArgument="<%# ((GridViewRow) Container).RowIndex %>"
Text="CM ►" />
<asp:ImageButton ID="btn_genRapport" ImageUrl="images/rapport.png" Width="37px" runat="server" CommandName="genRap"
CommandArgument="<%# ((GridViewRow) Container).RowIndex %>" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
<PagerStyle CssClass="pgr"></PagerStyle>
</asp:GridView>

I found the solution, I removed AllowPaging="True" on from the properties of GridView. It works now

Make asp buttonfield visible at runtime

I have an <asp:ButtonField> inside a gridview. How do I target the button in the gridview to make it Visible on runtime based on a condition ? I am not able to target it since it doesnt have the ID property. I am stuck here. Here is the code below
<asp:GridView ID="OrdersDataList1" runat="server" DataKeyNames="OrderID" Width="100%" SkinID="Gridview" OnPageIndexChanging="orders_PageIndexChanging"
EmptyDataText="You have no orders." AllowSorting="True" OnSorting="OnSort" AllowPaging="true" PageSize="15" AutoGenerateColumns="False" OnRowCommand="updateStatus">
<Columns>
<asp:BoundField DataField="CustomerUser_ID" HeaderText="UserID" Visible="true" />
<asp:BoundField DataField="OrderID" HeaderText="OrderNo" InsertVisible="False" ReadOnly="True" HeaderStyle-HorizontalAlign="Left" ItemStyle-HorizontalAlign="Left" SortExpression="OrderID" />
<asp:BoundField DataField="OrderDate" HeaderText="OrderDate" SortExpression="OrderDate" HeaderStyle-HorizontalAlign="Center" ItemStyle-HorizontalAlign="Center"/>
<asp:BoundField DataField="Base" HeaderText="Base" DataFormatString="{0:C}" SortExpression="Base" HeaderStyle-HorizontalAlign="Right" ItemStyle-HorizontalAlign="Right"/>
<asp:BoundField DataField="Freight" HeaderText="Freight" DataFormatString="{0:C}" SortExpression="Freight" HeaderStyle-HorizontalAlign="Right" ItemStyle-HorizontalAlign="Right"/>
<asp:BoundField DataField="Total" HeaderText="Total" DataFormatString="{0:C}" SortExpression="Total" HeaderStyle-HorizontalAlign="Right" ItemStyle-HorizontalAlign="Right"/>
<asp:BoundField DataField="Products" HeaderText="Products" SortExpression="Products" DataFormatString="{0} product" HeaderStyle-HorizontalAlign="Left" ItemStyle-HorizontalAlign="Left"/>
<asp:BoundField DataField="Units" HeaderText="Units" SortExpression="Units" DataFormatString="{0} units" HeaderStyle-HorizontalAlign="Left" ItemStyle-HorizontalAlign="Left"/>
<asp:BoundField DataField="OrderStatusName" HeaderText="Current Status" SortExpression="OrderStatusName" HeaderStyle-HorizontalAlign="Left" ItemStyle-HorizontalAlign="Left"/>
<asp:BoundField DataField="OrderStatusID" HeaderText="Orderstatusid" Visible="true" />
<asp:BoundField DataField="OrderTracking_ID" HeaderText="TrackingNo" SortExpression="OrderTracking_ID" HeaderStyle-HorizontalAlign="Left" ItemStyle-HorizontalAlign="Left"/>
<asp:TemplateField HeaderText="Action">
<ItemTemplate>
<%# GetViewOrderLink(Eval("OrderID").ToString(), Eval("OrderState").ToString())%>
</ItemTemplate>
<HeaderStyle HorizontalAlign="Left" />
<ItemStyle HorizontalAlign="Left" />
</asp:TemplateField>
<asp:TemplateField HeaderText="Change Status" SortExpression="OrderStatusName">
<ItemTemplate>
<asp:DropDownList ID="OrderStatusDD" runat="server"
DataSourceID="OrdersStatuses" DataTextField="OrderStatusName" DataValueField="OrderStatusID" Visible="false">
</asp:DropDownList>
<asp:SqlDataSource ID="OrdersStatuses" runat="server"
ConnectionString="<%$ ConnectionStrings:SqlConn %>"
SelectCommand="SELECT [OrderStatusID], [OrderStatusName] FROM [Orders_Statuses] where OrderStatusID = 2 or OrderStatusID = 8 ORDER BY [OrderStatusName]">
</asp:SqlDataSource>
</ItemTemplate>
</asp:TemplateField>
<asp:ButtonField ButtonType="Button" Text="Update status" Visible="false" HeaderText="Change Status" />
</Columns>
</asp:GridView>
PS I have the onrowCommand set on the gridview to listen to button click in gridview

You need to create RowCreated event for the gridview example
Before the GridView control can be rendered, a GridViewRow object must be created for each row in the control. The RowCreated event is raised when each row in the GridView control is created. This enables you to provide an event-handling method that performs a custom routine, such as adding custom content to a row, whenever this event occurs.
protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)
{
}
OR
<asp:GridView runat="server" ID="GV1" AutoGenerateColumns="false">
<Columns>
<asp:BoundField DataField="Name" HeaderText="Name" />
<asp:BoundField DataField="Age" HeaderText="Age" />
<asp:TemplateField>
<ItemTemplate>
<asp:Button runat="server" Text="Reject"
Visible='<%# IsOverAgeLimit((Decimal)Eval("Age")) %>'
CommandName="Select"/>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
protected Boolean IsOverAgeLimit(Decimal Age) {
return Age > 35M;
}
Reference example

You can use the RowCreated event in the GridView as follows:
protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)
{
Button btn = (Button) e.Row.Cells[12].Controls[0];
if(1==1)
{
btn.Visible = true;
}
}

((BoundField)grv_selec.Columns[1]).DataFormatString = "{0:N2}";

Get Particular Grid Column value on button click?

MY grid view code
<asp:GridView ID="grdAccidentMaster" runat="server" AutoGenerateColumns="False"
Width="80%" BackColor="White" BorderColor="#DEDFDE" BorderStyle="Solid" BorderWidth="1px"
EmptyDataText="No Records found" CellPadding="4" ForeColor="Black" GridLines="Both"
DataKeyNames="IncidentNo" OnRowDataBound="grdAccidentMaster_RowDataBound">
<Columns>
<asp:BoundField DataField="IncidentNo" HeaderText="IncidentNo" />
<asp:BoundField DataField="CreatedDate" HeaderText="Created Date" />
<asp:BoundField DataField="AccidentDate" HeaderText="Accident Date" />
<asp:BoundField DataField="PoliceStation" HeaderText="Police Station" />
<asp:BoundField DataField="City" HeaderText="City Name" />
<asp:BoundField DataField="RoadCondition" HeaderText="Road Condition" />
<asp:BoundField DataField="RoadFeature" HeaderText="Road Feature" />
<asp:TemplateField HeaderText="Print">
<ItemTemplate>
<asp:Button runat="server" Text="Click" ID="btnClick" OnClick="btnPrint_click" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
MY grid view Output
If i click the Click button under Print column. I need to get the IncidentNo value '4022' on onclick function.

Add an event in Gridview :
OnRowCommand="grdAccidentMaster_OnRowCommand"
Change template for button :
<ItemTemplate>
<asp:Button runat="server" Text="Click" ID="btnClick"
CommandName="SendIncidentNo" CommandArgument='<%# Eval("IncidentNo") %>' />
</ItemTemplate>
Code behind :
protected void grdAccidentMaster_OnRowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName != "SendIncidentNo") return;
int incidentNo = Convert.ToInt32(e.CommandArgument);
// do something
}

Passing values from GridView to code behind file in ASP.NET

I have a GridView that binds values from the database.
Here is the code:
<asp:GridView ID="GridView1" AutoGenerateColumns="False" DataKeyNames="DataView" runat="server" OnRowCommand="GridView1_RowCommand">
<Columns>
<asp:BoundField DataField="ProductName" HeaderText="Title" />
<asp:ImageField DataImageUrlField="ProductId" DataImageUrlFormatString="getProductImage.ashx?ProductID={0}" HeaderText="Image">
</asp:ImageField>
<asp:BoundField DataField="ProductDescription" HeaderText="Description" />
<asp:BoundField DataField="ProductCost" HeaderText="Cost" />
<asp:TemplateField HeaderText="Quantity">
<ItemTemplate>
<asp:TextBox runat="server" TextMode="Number" ID="txtQuantity"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:ButtonField Text="Button" CommandName="AddToCart" />
</Columns>
</asp:GridView>
I want to pass the command arguments containing values from txtQuantity and ProductID to the code behind on CommandName "AddToCart".
How can I do this?

Bind the values of the ProductID & Quantity in the GridView. In GridView, give like this:
<asp:GridView ID="GridView1" AutoGenerateColumns="False" DataKeyNames="DataView" runat="server" OnRowCommand="GridView1_RowCommand">
<Columns>
<asp:BoundField DataField="ProductName" HeaderText="Title" />
<asp:ImageField DataImageUrlField="ProductId" DataImageUrlFormatString="getProductImage.ashx?ProductID={0}" HeaderText="Image">
</asp:ImageField>
<asp:BoundField DataField="ProductDescription" HeaderText="Description" />
<asp:BoundField DataField="ProductCost" HeaderText="Cost" />
<asp:TemplateField HeaderText="Quantity">
<ItemTemplate>
<asp:TextBox runat="server" TextMode="Number" ID="txtQuantity" Text="<%# Bind("Quantity")%>"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:Button Text="Button" CommandName="AddToCart" CommandArgument="<%# Eval("Quantity") + "," + Eval("ProductID")%>" />
</Columns>
</asp:GridView>
In GridView RowCommand event, give the below code:
if(e.CommandName == "AddToCart")
{
string[] args = e.CommandArgument.ToString().Split(",");
Decimal Quantity = Convert.ToDecimal(args[0]);
int ProductID = Convert.ToInt32(args[1]);
}