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How to apply text field check cleanliness when clicking a button inside gridview in asp.net using javascript?

How to apply text field validation cleanliness when clicking a button inside gridview in javascript? gridview that contains 2 text fields and a save button in each row. I want to check the text fields on the corresponding save button.

I applied logic, but the problem is that it will only work for textBox identifiers that are hard-coded. How can I change this code so that it works for all gridview rows?

function gvValidate() {

var grid = document.getElementById('<%= GridViewCTInformation.ClientID %>');
 if(grid!=null) 
  {
   var Inputs = grid.getElementsByTagName("input"); 
    for(i = 0; i < Inputs.length; i++) 
     {
      if(Inputs[i].type == 'text' ) 
       {
           if (Inputs[i].id == 'ctl00_contentPlaceHolderSubScreen_GridViewCTInformation_ctl02_TextBoxCTTermCode') 
             {
                 if (Inputs[i].value == "") {
                     alert("Enter values,blank is not allowed");
                     return false;
                 }

             }
             else if (Inputs[i].id == 'ctl00_contentPlaceHolderSubScreen_GridViewCTInformation_ctl02_TextBoxCTTermDesc') {
                 if (Inputs[i].value == "") {
                     alert("Enter values,blank is not allowed");
                     return false;
                 }
             }

      }
     }
     return true;
 }

}

 Protected Sub GridViewTaxInformation_RowDataBound(sender As Object, e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridViewTaxInformation.RowDataBound
    Try
        If e.Row.RowType = DataControlRowType.DataRow Then

            Dim btnSave As Button = DirectCast(e.Row.FindControl("ButtonSave"), Button)
            btnSave.Attributes.Add("onclick", "return gvValidate()")
        End If
    Catch ex As Exception
        Common.WriteLog(ex.Message)
        Common.WriteLog((ex.StackTrace))
        Response.Redirect("..\Errors.aspx", False)
    End Try
End Sub
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3 answers

Finally, I got a solution to my problem. I just passed the gridview row index to a javascript function.

Here is the code

 function gvValidate(rowIndex) {

var grid = document.getElementById('<%= GridViewCTInformation.ClientID %>');
 if(grid!=null) {
     var Inputs = grid.rows[rowIndex + 1].getElementsByTagName("input"); 
    for(i = 0; i < Inputs.length; i++) 
     {
      if(Inputs[i].type == 'text' ) 
       {
                  if (Inputs[i].value == "") {
                     alert("Enter values,blank is not allowed");
                     return false;
                 }

      }
     }
     return true;
 }

}

Protected Sub GridViewCTInformation_RowDataBound(sender As Object, e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridViewCTInformation.RowDataBound
    Try
        If e.Row.RowType = DataControlRowType.DataRow Then
            Dim btnSave As Button = DirectCast(e.Row.FindControl("ButtonCTInfoSave"), Button)
            btnSave.Attributes.Add("onclick", "return gvValidate(" + e.Row.RowIndex.ToString() + ")")
        End If
    Catch ex As Exception
        Common.WriteLog(ex.Message)
        Common.WriteLog((ex.StackTrace))
        Response.Redirect("..\Errors.aspx", False)
    End Try
End Sub
+2

. .

 if(Inputs[i].type == 'text' ) 
 {

             if (Inputs[i].value == "") {
                 alert("Enter values,blank is not allowed");
                 return false;
             }

  }
+1
  <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ErrorMessage="*" ControlToValidate="the name of your textbox to be validated" ForeColor="Red"></asp:RequiredFieldValidator>

try it, it can help you, you can use validation elements to validate any input

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