求助vb.net高手,如何在datagridview中添加行,添加列,删除行删除列。

求助vb.net高手,如何在datagridview中添加行,添加列,删除行删除列。,第1张

您好,要实现非常简单。需要四个按钮,一个datagridview控件。代码如下

Public Class Form1

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

'添加

Me.DataGridView1.Rows.Add()

End Sub

Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click

'添加列

Me.DataGridView1.Columns.Add("1", "on")

End Sub

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click

'删除

Me.DataGridView1.Rows.RemoveAt(0)

End Sub

Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click

'删除列

Me.DataGridView1.Columns.RemoveAt(0)

End Sub

End Class

以上如有不清楚,您可以继续追问。希望对您有用!

附1:

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta http-equiv="Content-Type" content="text/htmlcharset=gb2312"/>

<title>动态添加删除表格</title>

<Script Language="Javascript">

var cGetRow=-99999

function AddRow()

{

//添加一行

var newTr = tab1.insertRow()

//添加两列

var newTd0 = newTr.insertCell()

var newTd1 = newTr.insertCell()

//设置列内容和属性

newTd0.innerHTML = '<input type=checkbox id="box4" on Click="GetRow()">'

newTd1.innerText= '新增加行'

}

function DelRow(iIndex)

{

//删除一行

if(iIndex==-99999)

alert("系统提示:没有选中行号!")

else

tab1.deleteRow(iIndex)

}

function GetRow()

{

//获得行索引

//两个parentElement分别是TD和TR哟,rowIndex是TR的属性

//this.parentElement.parentElement.rowIndex

cGetRow=window.event.srcElement.parentElement.parentElement.rowIndex

}

function ShowRow()

{

//显示行号

alert(cGetRow)

//alert(document.getElementsByTagName("tr").length)

}

</script>

</head>

<body>

<table id="tab1" border=1>

<tr id="tr1">

<td width=6%><input type=checkbox id="box1" on Click="GetRow()"></td>

<td id="a">第一行</td>

</tr>

<tr id="tr2">

<td width=6%><input type=checkbox id="box2" on Click="GetRow()"></td>

<td id="b">第二行</td>

</tr>

<tr id="tr3">

<td width=6%><input type=checkbox id="box3" on Click="GetRow()"></td>

<td id="c">第三行</td>

</tr>

</table>

<input type="submit" name="Submit" value="AddRow" on click="javascript :AddRow()">

<input type="submit" name="Submit" value="DelRow" on click="javascript :DelRow(cGetRow)">

<input type="submit" name="Submit" value="ShowRow" on click="javascript :ShowRow()">

</body>

</html>

附 2:

<HTML>

<HEAD>

<script LANGUAGE="JAVASCRIPT">

iIndex = 0//试验一下加了int类型定义后如何???

var i= 0

function showIndex(){

alert(iIndex)

}

function getIndex(){

iIndex = event.srcElement.parentElement.parentElement.rowIndex

return iIndex

}

function insertRow(iPos){

var otr=myTable.insertRow(i)

var ocell=otr.insertCell(0)

ocell.innerHTML="<input type=file name=aa >"

var ocell=otr.insertCell(1)

// ocell.innerText="bb"

ocell.innerHTML=" <input type=button onclick=deleteRow(getIndex()) value='删除"+ i +"'>"

i++

}

function deleteRow(iPos){

document.all.myTable.deleteRow(iPos)

i--

}

</SCRIPT>

</HEAD>

<BODY>

<table id="myTable" border=1 width=600 >

</table>

<form>

<input type=button onclick="alert(iIndex)" value="show Index">

<input type=button onclick="insertRow(0)" value="插入行">

</form>

</BODY>

</HTML>

附 3:

<script>

function deleteRow (tableID, rowIndex) {

var table =document.all[tableID]

table.deleteRow(rowIndex)

}

</script>

<table id=mxh border=1>

<tr>

<td>第1行</td><td onclick="deleteRow('mxh',this.parentElement.rowIndex)">删除本行</td>

</tr>

<tr>

<td>第2行</td><td onclick="deleteRow('mxh',this.parentElement.rowIndex)">删除本行</td>

</tr>

<tr>

<td>第3行</td><td onclick="deleteRow('mxh',this.parentElement.rowIndex)">删除本行</td>

</tr>

<tr>

<td>第4行</td><td onclick="deleteRow('mxh',this.parentElement.rowIndex)">删除本行</td>

</tr>

</table>

<HTML>

<HEAD>

<script LANGUAGE="JAVASCRIPT">

iIndex = 0//试验一下加了int类型定义后如何???

function showIndex(){

alert(iIndex)

}

function getIndex(){

iIndex = event.srcElement.parentElement.rowIndex

}

function insertRow(iPos){

var otr=myTable.insertRow(iPos)

var ocell=otr.insertCell(0)

ocell.innerText="aa"

var ocell=otr.insertCell(1)

ocell.innerText="bb"

}

function deleteRow(iPos){

document.all.myTable.deleteRow(iPos)

}

</SCRIPT>

</HEAD>

<BODY>

<table id="myTable" border=1>

<tr onclick="getIndex()">

<td>1</td>

<td>2</td>

</tr>

<tr onclick="getIndex()">

<td>1</td>

<td>2</td>

</tr>

</table>

<form>

<input type=button onclick="alert(iIndex)" value="show Index">

<input type=button onclick="insertRow(iIndex)" value="插入行">

<input type=button onclick="deleteRow(iIndex)" value="删除行">

</form>

</BODY>

</HTML>


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