ASPxGridView.EditingRowVisibleIndex Property

Gets the index of the data row currently being edited.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v22.1.dll

Declaration

C#

public int EditingRowVisibleIndex { get; }

VB.NET

Public ReadOnly Property EditingRowVisibleIndex As Integer

Property Value

Type	Description
Int32	An integer value that identifies the row currently being edited. -1 if no data row is being edited.

Remarks

Use the EditingRowVisibleIndex property to identify the data row currently being edited by an end-user. This can be useful when the focused row feature is disabled (the ASPxGridViewBehaviorSettings.AllowFocusedRow property is set to false). Otherwise, if the focused row is enabled, you can also use the ASPxGridView.FocusedRowIndex property.

Example

This example illustrates how to use the ASPxListBox control (ListEditSelectionMode) inside the EditForm for editing ASPxGridView.

View Example

Default.aspx (C#)

    <h1>How to use ASPxListBox inside the EditForm for editing ASPxGridView</h1>
    <dx:ASPxGridView ID="ASPxGridView1" runat="server" AutoGenerateColumns="False" DataSourceID="AccessDataSource1"
        KeyFieldName="CategoryID" OnRowUpdating="ASPxGridView1_RowUpdating"  OnRowValidating="ASPxGridView1_RowValidating">
        <Columns>
            <dx:GridViewCommandColumn VisibleIndex="0" ShowEditButton="true">
            </dx:GridViewCommandColumn>
            <dx:GridViewDataTextColumn FieldName="CategoryID" ReadOnly="True" VisibleIndex="0">
                <EditFormSettings Visible="False" />
            </dx:GridViewDataTextColumn>
            <dx:GridViewDataTextColumn FieldName="CategoryName" VisibleIndex="1">
            </dx:GridViewDataTextColumn>
            <dx:GridViewDataTextColumn FieldName="Description" VisibleIndex="2">
            </dx:GridViewDataTextColumn>
        </Columns>
        <Templates>
            <EditForm>
                <dx:ASPxListBox ID="ASPxListBox1" runat="server" DataSourceID="AccessDataSource2"
                    SelectionMode="CheckColumn" TextField="ProductName" ValueField="ProductName" ValueType="System.String" OnDataBound="ASPxListBox1_DataBound">
                </dx:ASPxListBox>
                <br />
                <dx:ASPxGridViewTemplateReplacement ID="btnUpdate" runat="server" ReplacementType="EditFormUpdateButton"></dx:ASPxGridViewTemplateReplacement>
                <dx:ASPxGridViewTemplateReplacement ID="btnCancel" runat="server" ReplacementType="EditFormCancelButton"></dx:ASPxGridViewTemplateReplacement>
            </EditForm>
        </Templates>
    </dx:ASPxGridView>
</div>
<asp:AccessDataSource ID="AccessDataSource1" runat="server" DataFile="~/App_Data/nwind.mdb"
    SelectCommand="SELECT [CategoryID], [CategoryName], [Description] FROM [Categories]"
    DeleteCommand="DELETE FROM [Categories] WHERE [CategoryID] = ?"
    InsertCommand="INSERT INTO [Categories] ([CategoryID], [CategoryName], [Description]) VALUES (?, ?, ?)"
    UpdateCommand="UPDATE [Categories] SET [CategoryName] = ?, [Description] = ? WHERE [CategoryID] = ?">
    <DeleteParameters>
        <asp:Parameter Name="CategoryID" Type="Int32" />
    </DeleteParameters>
    <UpdateParameters>
        <asp:Parameter Name="CategoryName" Type="String" />
        <asp:Parameter Name="Description" Type="String" />
        <asp:Parameter Name="CategoryID" Type="Int32" />
    </UpdateParameters>
    <InsertParameters>
        <asp:Parameter Name="CategoryID" Type="Int32" />
        <asp:Parameter Name="CategoryName" Type="String" />
        <asp:Parameter Name="Description" Type="String" />
    </InsertParameters>
</asp:AccessDataSource>
<asp:AccessDataSource ID="AccessDataSource2" runat="server" DataFile="~/App_Data/nwind.mdb"
    SelectCommand="SELECT [ProductName] FROM [Products]"></asp:AccessDataSource>

Default.aspx.cs

using DevExpress.Web;

public partial class _Default : System.Web.UI.Page {
    protected void Page_Load(object sender, EventArgs e) {

    }

    protected void ASPxListBox1_DataBound(object sender, EventArgs e) {
        var listBox = (ASPxListBox)sender;

        int editingRowVisibleIndex = ASPxGridView1.EditingRowVisibleIndex;
        string rowValue = ASPxGridView1.GetRowValues(editingRowVisibleIndex, "Description").ToString();
        string[] rowValueItems = rowValue.Split(';');

        List<string> rowValueItemsAsList = new List<string>();
        rowValueItemsAsList.AddRange(rowValueItems);

        foreach (ListEditItem item in listBox.Items) {
            if (rowValueItemsAsList.Contains(item.Value.ToString())) {
                item.Selected = true;
            }
        }
    }
    protected void ASPxGridView1_RowUpdating(object sender, DevExpress.Web.Data.ASPxDataUpdatingEventArgs e) {
        var grid = (ASPxGridView)sender;
        ASPxListBox listBox = (ASPxListBox)grid.FindEditFormTemplateControl("ASPxListBox1");

        string selectedItemsAsString = string.Empty;

        foreach (ListEditItem item in listBox.SelectedItems) {
            selectedItemsAsString += item.Text + ";";
        }

        if (selectedItemsAsString.Length > 0) {
            selectedItemsAsString = selectedItemsAsString.Trim(';');
        }

        // e.NewValues["Description"] = selectedItemsAsString; //Uncomment this line to allow editing 
    }



    protected void ASPxGridView1_RowValidating(object sender, DevExpress.Web.Data.ASPxDataValidationEventArgs e) {
        e.RowError = "Data source modification is not allowed. To test the updating operation, download the project and run it locally";//Remove this line in local environment
    }
}

Default.aspx (VB.NET)

    <h1>How to use ASPxListBox inside the EditForm for editing ASPxGridView</h1>
    <dx:ASPxGridView ID="ASPxGridView1" runat="server" AutoGenerateColumns="False" DataSourceID="AccessDataSource1"
        KeyFieldName="CategoryID" OnRowUpdating="ASPxGridView1_RowUpdating"  OnRowValidating="ASPxGridView1_RowValidating">
        <Columns>
            <dx:GridViewCommandColumn VisibleIndex="0" ShowEditButton="true">
            </dx:GridViewCommandColumn>
            <dx:GridViewDataTextColumn FieldName="CategoryID" ReadOnly="True" VisibleIndex="0">
                <EditFormSettings Visible="False" />
            </dx:GridViewDataTextColumn>
            <dx:GridViewDataTextColumn FieldName="CategoryName" VisibleIndex="1">
            </dx:GridViewDataTextColumn>
            <dx:GridViewDataTextColumn FieldName="Description" VisibleIndex="2">
            </dx:GridViewDataTextColumn>
        </Columns>
        <Templates>
            <EditForm>
                <dx:ASPxListBox ID="ASPxListBox1" runat="server" DataSourceID="AccessDataSource2"
                    SelectionMode="CheckColumn" TextField="ProductName" ValueField="ProductName" ValueType="System.String" OnDataBound="ASPxListBox1_DataBound">
                </dx:ASPxListBox>
                <br />
                <dx:ASPxGridViewTemplateReplacement ID="btnUpdate" runat="server" ReplacementType="EditFormUpdateButton"></dx:ASPxGridViewTemplateReplacement>
                <dx:ASPxGridViewTemplateReplacement ID="btnCancel" runat="server" ReplacementType="EditFormCancelButton"></dx:ASPxGridViewTemplateReplacement>
            </EditForm>
        </Templates>
    </dx:ASPxGridView>
</div>
<asp:AccessDataSource ID="AccessDataSource1" runat="server" DataFile="~/App_Data/nwind.mdb"
    SelectCommand="SELECT [CategoryID], [CategoryName], [Description] FROM [Categories]"
    DeleteCommand="DELETE FROM [Categories] WHERE [CategoryID] = ?"
    InsertCommand="INSERT INTO [Categories] ([CategoryID], [CategoryName], [Description]) VALUES (?, ?, ?)"
    UpdateCommand="UPDATE [Categories] SET [CategoryName] = ?, [Description] = ? WHERE [CategoryID] = ?">
    <DeleteParameters>
        <asp:Parameter Name="CategoryID" Type="Int32" />
    </DeleteParameters>
    <UpdateParameters>
        <asp:Parameter Name="CategoryName" Type="String" />
        <asp:Parameter Name="Description" Type="String" />
        <asp:Parameter Name="CategoryID" Type="Int32" />
    </UpdateParameters>
    <InsertParameters>
        <asp:Parameter Name="CategoryID" Type="Int32" />
        <asp:Parameter Name="CategoryName" Type="String" />
        <asp:Parameter Name="Description" Type="String" />
    </InsertParameters>
</asp:AccessDataSource>
<asp:AccessDataSource ID="AccessDataSource2" runat="server" DataFile="~/App_Data/nwind.mdb"
    SelectCommand="SELECT [ProductName] FROM [Products]"></asp:AccessDataSource>

Default.aspx.vb

Imports DevExpress.Web

Partial Public Class _Default
    Inherits System.Web.UI.Page

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)

    End Sub

    Protected Sub ASPxListBox1_DataBound(ByVal sender As Object, ByVal e As EventArgs)
        Dim listBox = DirectCast(sender, ASPxListBox)

        Dim editingRowVisibleIndex As Integer = ASPxGridView1.EditingRowVisibleIndex
        Dim rowValue As String = ASPxGridView1.GetRowValues(editingRowVisibleIndex, "Description").ToString()
        Dim rowValueItems() As String = rowValue.Split(";"c)

        Dim rowValueItemsAsList As New List(Of String)()
        rowValueItemsAsList.AddRange(rowValueItems)

        For Each item As ListEditItem In listBox.Items
            If rowValueItemsAsList.Contains(item.Value.ToString()) Then
                item.Selected = True
            End If
        Next item
    End Sub
    Protected Sub ASPxGridView1_RowUpdating(ByVal sender As Object, ByVal e As DevExpress.Web.Data.ASPxDataUpdatingEventArgs)
        Dim grid = DirectCast(sender, ASPxGridView)
        Dim listBox As ASPxListBox = CType(grid.FindEditFormTemplateControl("ASPxListBox1"), ASPxListBox)

        Dim selectedItemsAsString As String = String.Empty

        For Each item As ListEditItem In listBox.SelectedItems
            selectedItemsAsString &= item.Text & ";"
        Next item

        If selectedItemsAsString.Length > 0 Then
            selectedItemsAsString = selectedItemsAsString.Trim(";"c)
        End If

        ' e.NewValues["Description"] = selectedItemsAsString; //Uncomment this line to allow editing 
    End Sub



    Protected Sub ASPxGridView1_RowValidating(ByVal sender As Object, ByVal e As DevExpress.Web.Data.ASPxDataValidationEventArgs)
        e.RowError = "Data source modification is not allowed. To test the updating operation, download the project and run it locally" 'Remove this line in local environment
    End Sub
End Class