TextBox is Empty onRoweditting event of gridview in c# asp.net ?

Question

User1601010121 posted

My edit template textboxes are empty when i click to edit button .

Here is RowEditingEvent 

 protected void grdLocation_RowEditing(object sender, GridViewEditEventArgs e)
        {
            DataTable dt = ViewState["dtgetPackages"] as DataTable;
            grdLocation.DataSource = dt;
            grdLocation.EditIndex = e.NewEditIndex;
            grdLocation.DataBind();
            //Bindgrid(); i used this method directly but same result as above this function is working fine
            
        }

if i remove Bindgrid(); function I need double click to edit button to go into edit mode .. in that case my text boxes are filled with right values and working fine . only problem is double click requires on edit button

here is Gridview

 <asp:GridView ID="grdLocation" CssClass="table table-bordered  table-condensed" OnRowDataBound="grdLocation_RowDataBound" DataKeyNames="PID" OnRowCancelingEdit="grdLocation_RowCancelingEdit" OnRowEditing="grdLocation_RowEditing" OnRowUpdating="grdLocation_RowUpdating" AutoGenerateColumns="false"  runat="server">
                    <HeaderStyle BackColor="#378ABC" />
                    <Columns>
                        <asp:TemplateField HeaderText="PackageName">
                            <ItemTemplate>
                                
                            <asp:Label runat="server" id="lblname" Text='<%# Eval("Name")%>'></asp:Label>
                                </ItemTemplate>
                            <EditItemTemplate> 
                                <asp:TextBox ID="txtName" Height="25px" runat="server"></asp:TextBox>

                            </EditItemTemplate>
                        </asp:TemplateField>
                        <asp:TemplateField HeaderText="Details">
                            <ItemTemplate>
                            <asp:Label id="lblcode" runat="server" Text='<%# Eval("Details")%>'></asp:Label>
                                </ItemTemplate>
                               <EditItemTemplate> 
                                <asp:TextBox ID="txtDetails"  Height="25px"  runat="server"></asp:TextBox>

                            </EditItemTemplate>
                        </asp:TemplateField>
                        <asp:TemplateField HeaderText="IsAptTransfer?">
                            <ItemTemplate>
                                <asp:CheckBox ID="chkIsAptTransfer" AutoPostBack="true" OnCheckedChanged="chkIsAptTransfer_CheckedChanged" runat="server" />
                                </ItemTemplate>
                              
                        </asp:TemplateField>
                        <asp:TemplateField HeaderText="Action">
                            <ItemTemplate>
                            <asp:LinkButton ID="btnEdit" runat="server" CssClass="btn-sm " BackColor="#378ABC" ForeColor="White" Text="Edit" CommandName="Edit"> <i class="icon-edit icon-white"></i> Edit</asp:LinkButton>
                                </ItemTemplate>
                            <EditItemTemplate>  
                        <asp:LinkButton ID="btn_Update" runat="server" Text="Update" CssClass="btn-sm btn-success "  ToolTip="Update" CommandName="Update"> <i class="icon-upload icon-white"></i> Update</asp:LinkButton> 
                        <asp:LinkButton ID="btn_Cancel" runat="server" Text="Cancel" CssClass="btn-sm btn-danger" CommandName="Cancel"> <i class="icon-remove icon-white"></i> Cancel</asp:LinkButton> 
                    </EditItemTemplate>
                        </asp:TemplateField>
                    </Columns>
                </asp:GridView>

Answer 1

User1724605321 posted

Hi morfious90, 

Please firstly read the GridView RowEditing demo below :

https://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.gridview.rowediting.aspx?f=255&MSPPError=-2147217396 

And mark sure you only bind the gridview in page_load once:

if(!Page.IsPostBack)
{
    GridView.DataBind();
}

Best Regards,

Nan Yu

Answer 2

User1601010121 posted

Yes i did. 

  if (!IsPostBack)
            {

                Bindgrid();
            }





public void Bindgrid()
        {
            SmartCabsBO.Organization Org = new SmartCabsBO.Organization();
            DataTable dtgetPackages = Org.getPackages(OID);
            if (dtgetPackages.Rows.Count > 0)
            {
                grdLocation.DataSource = dtgetPackages;
                grdLocation.DataBind();
            }

        }


  protected void grdLocation_RowDataBound(object sender, GridViewRowEventArgs e)
        {
            if (e.Row.RowType == DataControlRowType.DataRow)
            {

                CheckBox ChkBox = ((CheckBox)e.Row.FindControl("chkIsAptTransfer"));
                string strCheck = ((DataRowView)e.Row.DataItem)["IsAptTransfer"].ToString();
                if (strCheck == "1")
                {
                    ChkBox.Checked = true;
                }
                else
                {
                    ChkBox.Checked = false;
                }
            }
        }

here is all event required for Editing 

Answer 3

User-1034726716 posted

Did you checked the value from ViewState? You can check it using dt.Rows.Count to ensure your datasource contains your expected data.

if i remove Bindgrid(); function I need double click to edit button to go into edit mode .. in that case my text boxes are filled with right values and working fine . only problem is double click requires on edit button

Double click issue arises when you are binding your grid on each and every postbacks at page_load event. Please take a look at this step=by-step example on how to implement CRUD in gridview using TemplateFields: http://geekswithblogs.net/dotNETvinz/archive/2009/06/10/adding-rows-in-gridview-with-edit-update-and-delete-functionality.aspx

Answer 4

User1601010121 posted

Friend I'm Not binding on every post back  please check my code above its on if(!IsnoPostback)

Answer 5

User-1034726716 posted

Friend I'm Not binding on every post back  please check my code above its on if(!IsnoPostback)

And you mean adding the following code below requires you to click twice before it will turn to edit mode?

protected void grdLocation_RowEditing(object sender, GridViewEditEventArgs e){
            grdLocation.EditIndex = e.NewEditIndex;
            Bindgrid();             
}

Answer 6

User1601010121 posted

Solution is 

I solved this problem while ago but answering just for others.. 

<asp:TextBox ID="txtName" Height="25px" Text='<%# Eval("ColumnName")%>' runat="server"></asp:TextBox>