vb .net to c# .net code converter

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.NET3.5

Hai,

I want to convert the below code into c# .net.But the error occurs.plz rectify it.
In the below code i can't get converted to c#.Below line shows error
"If Page.IsPostBack = False Then
BindGrid()"
and also "Row" and "Gridview1.datasource" also showing error.

Imports System.Data
Partial Class _Default
    Inherits System.Web.UI.Page

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        If Page.IsPostBack = False Then
            BindGrid()
        End If
    End Sub

    Sub BindGrid()
        Dim oDs As New DataSet
        oDs.ReadXml(Request.PhysicalApplicationPath + "XMLFile.xml")
        GridView1.DataSource = oDs
        GridView1.DataBind()
    End Sub

    Protected Sub GridView1_PageIndexChanging(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewPageEventArgs) Handles GridView1.PageIndexChanging
        GridView1.PageIndex = e.NewPageIndex
        BindGrid()
    End Sub

    Protected Sub GridView1_RowCancelingEdit(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewCancelEditEventArgs) Handles GridView1.RowCancelingEdit
        GridView1.EditIndex = -1
        BindGrid()
    End Sub

    Protected Sub GridView1_RowDeleting(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewDeleteEventArgs) Handles GridView1.RowDeleting
        BindGrid()
        Dim oDs As DataSet = GridView1.DataSource
        oDs.Tables(0).Rows(GridView1.Rows(e.RowIndex).DataItemIndex).Delete()
        oDs.WriteXml(Request.PhysicalApplicationPath + "XMLFile.xml")
        BindGrid()
    End Sub

    Protected Sub GridView1_RowEditing(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewEditEventArgs) Handles GridView1.RowEditing
        GridView1.EditIndex = e.NewEditIndex
        BindGrid()
    End Sub

    Protected Sub GridView1_RowUpdating(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewUpdateEventArgs) Handles GridView1.RowUpdating
        Dim i As Integer = GridView1.Rows(e.RowIndex).DataItemIndex
        Dim strId As String = CType(GridView1.Rows(e.RowIndex).Cells(2).Controls(0), TextBox).Text
        Dim strName As String = CType(GridView1.Rows(e.RowIndex).Cells(3).Controls(0), TextBox).Text
        Dim strTel As String = CType(GridView1.Rows(e.RowIndex).Cells(4).Controls(0), TextBox).Text

        GridView1.EditIndex = -1
        BindGrid()
        Dim oDs As DataSet = GridView1.DataSource

        oDs.Tables(0).Rows(i).Item(0) = strId
        oDs.Tables(0).Rows(i).Item(1) = strName
        oDs.Tables(0).Rows(i).Item(2) = strTel

        oDs.WriteXml(Request.PhysicalApplicationPath + "XMLFile.xml")
        BindGrid()

    End Sub

    Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
        BindGrid()
        Dim oDs As DataSet = GridView1.DataSource
        Dim oDr As DataRow = oDs.Tables(0).NewRow
        oDr("id") = txtId.Text
        oDr("name") = txtName.Text
        oDr("phone") = txtTel.Text
        oDs.Tables(0).Rows.Add(oDr)
        oDs.WriteXml(Request.PhysicalApplicationPath + "XMLFile.xml")
        BindGrid()
    End Sub
End Class

Posted 14-Mar-11 0:25am

sridharan28

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Sandeep Mewara 14-Mar-11 6:33am

What error?

sridharan28 14-Mar-11 6:40am

"Cannot implicitly convert type 'object' to 'System.Data.DataSet'. An explicit conversion exists (are you missing a cast?) C:\Documents and Settings\sridharan\Desktop\sridharan\027_edit_xml_src\Default3.aspx.cs 63 23 C:\...\027_edit_xml_src\"

2 solutions

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^That's **Aragon** · Answer 1 · 2011-03-14T00:44:00

Try out below code. It should work.
Only 2 issues in code converted from above link provided by OriginalGriff

1. GridView row/cell accessing in code behind should be with square brackets(i.e. "[". "]")
2. GridView source should be parse to DataSet. [ I am not sure if it will work or not :( ]

using Microsoft.VisualBasic;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Diagnostics;
using System.Web.UI.WebControls;
partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, System.EventArgs e)
    {
        if (!IsPostBack)
        {
            BindGrid();
        }
    }
    public void BindGrid()
    {
        DataSet oDs = new DataSet();
        oDs.ReadXml(Request.PhysicalApplicationPath + "XMLFile.xml");
        GridView1.DataSource = oDs;
        GridView1.DataBind();
    }
    protected void GridView1_PageIndexChanging(object sender, System.Web.UI.WebControls.GridViewPageEventArgs e)
    {
        GridView1.PageIndex = e.NewPageIndex;
        BindGrid();
    }
    protected void GridView1_RowCancelingEdit(object sender, System.Web.UI.WebControls.GridViewCancelEditEventArgs e)
    {
        GridView1.EditIndex = -1;
        BindGrid();
    }
    protected void GridView1_RowDeleting(object sender, System.Web.UI.WebControls.GridViewDeleteEventArgs e)
    {
        BindGrid();
        DataSet oDs = (DataSet)GridView1.DataSource;
        oDs.Tables[0].Rows[GridView1.Rows[e.RowIndex].DataItemIndex].Delete();
        oDs.WriteXml(Request.PhysicalApplicationPath + "XMLFile.xml");
        BindGrid();
    }
    protected void GridView1_RowEditing(object sender, System.Web.UI.WebControls.GridViewEditEventArgs e)
    {
        GridView1.EditIndex = e.NewEditIndex;
        BindGrid();
    }
    protected void GridView1_RowUpdating(object sender, System.Web.UI.WebControls.GridViewUpdateEventArgs e)
    {
        int i = GridView1.Rows[e.RowIndex].DataItemIndex;
        string strId = ((TextBox)GridView1.Rows[e.RowIndex].Cells[2].Controls[0]).Text;
        string strName = ((TextBox)GridView1.Rows[e.RowIndex].Cells[3].Controls[0]).Text;
        string strTel = ((TextBox)GridView1.Rows[e.RowIndex].Cells[4].Controls[0]).Text;
        GridView1.EditIndex = -1;
        BindGrid();
        DataSet oDs = (DataSet)GridView1.DataSource;
        oDs.Tables[0].Rows[i][0] = strId;
        oDs.Tables[0].Rows[i][1] = strName;
        oDs.Tables[0].Rows[i][2] = strTel;
        oDs.WriteXml(Request.PhysicalApplicationPath + "XMLFile.xml");
        BindGrid();
    }
    protected void Button1_Click(object sender, System.EventArgs e)
    {
        BindGrid();
        DataSet oDs = (DataSet)GridView1.DataSource;
        DataRow oDr = oDs.Tables[0].NewRow();
        oDr["id"] = txtId.Text;
        oDr["name"] = txtName.Text;
        oDr["phone"] = txtTel.Text;
        oDs.Tables[0].Rows.Add(oDr);
        oDs.WriteXml(Request.PhysicalApplicationPath + "XMLFile.xml");
        BindGrid();
    }
   
}

Hope it helps.

OriginalGriff · Answer 2 · 2011-03-14T00:33:00

Solution 1

I'm not sure what your problem is, I can't see anything massively wrong with the code.
There is an on-line converter between VB and C# here: http://www.developerfusion.com/tools/convert/vb-to-csharp/[^] - I use it quite a bit!

Posted 14-Mar-11 0:33am

OriginalGriff