Member Avatar for geetajlo

i have a button name save and a datagrid with 2 columns namely drugname which is a combo box and qtyused(simple) and a txtFirstName on the form

if the user enters firstname and 4got to enters or select the datagrid column
i want to remind him/her by a msgbox that she/he has to select the drug name and specify qtyused

a msgbox for the 2 columns drugname and qtyused

help....

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  • Latest Post Latest Post by Pgmer

Dani AI

Generated

Building on the hints from and for : the reliable approach is to validate the grid on the Save click, not with a server-side MsgBox. MsgBox is a Windows UI call and will not appear in the browser. Server-side logic should walk each DataGrid row, find the drop-down and quantity controls, verify selection and numeric input, then emit a browser alert (or block the save and display validation UI). For partial postbacks use ScriptManager.RegisterStartupScript instead of ClientScript.RegisterStartupScript.

Example server-side pattern (VB.NET) to run in the Save button click:

Protected Sub btnSave_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnSave.Click
    For Each item As DataGridItem In MyDataGrid.Items
        Dim ddlDrug As DropDownList = CType(item.FindControl("ddlDrug"), DropDownList)
        Dim txtQty As TextBox = CType(item.FindControl("txtQty"), TextBox)
        If ddlDrug Is Nothing Or txtQty Is Nothing Then Continue For

        Dim qty As Integer
        If ddlDrug.SelectedIndex <= 0 OrElse String.IsNullOrEmpty(txtQty.Text.Trim()) OrElse Not Integer.TryParse(txtQty.Text, qty) Then
            Dim msg As String = "Please select a drug and enter a valid quantity for every row."
            ClientScript.RegisterStartupScript(Me.GetType(), "alert", "alert('" & msg.Replace("'", "\'") & "');", True)
            Return
        End If
    Next

    ' Proceed with saving...
End Sub

Notes: if you prefer client-side feedback for better UX, add JavaScript validation (or validators inside the ItemTemplate). Escape quotes when emitting JavaScript, and validate numeric ranges with Integer.TryParse (server-side) to avoid bad data.

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Member Avatar for selvaganapathy

Hi
I am not clearly understand ur problem. but try this.
Use GotFocus () event of DataGrid and Check the Combo Box whether anything selected or not. If not, show the message box.

Member Avatar for Pgmer

I think u need validation in save button click datagrid.row.selected=true then
continue
else
msgbox("Please select Drug name")

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