ASP.NET：GridView中模板列、RowCommand和行号获取

时间: 2008-06-20 / 分类: 学习心得 / 浏览次数: 1,519 views / 0个评论发表评论

这里主要是解决GridView中添加了模板列，模板列里面放置了按钮，怎么通过CommandArgument来获取行号，以及通过CommandName执行命令的过程。废话不多说，用代码说话：

页面代码<body>部分：看下面的红字部分，Button属性主要是CommandName和CommandArgument两个，其中CommandArgument用来获取所在GridView的行号。

<asp:UpdatePanel ID=UpdatePanel1
runat=server>

<ContentTemplate>

<asp:GridView ID=GridView1 runat=server
AutoGenerateColumns=false AllowPaging=true PageSize=15
OnPageIndexChanging=GridView1_OnPageIndexChanging
OnRowCommand=GridView1_OnRowCommand>

<Columns>

<asp:BoundField DataField=UserID
HeaderText=用户ID />

<asp:BoundField DataField=UserName
HeaderText=用户名 />

<asp:BoundField DataField=Email
HeaderText=邮箱 />

<asp:BoundField DataField=Been_freezed
HeaderText=是否冻结 ItemStyle-HorizontalAlign=center
/>

<asp:TemplateField
ItemStyle-HorizontalAlign=center
ItemStyle-Width=80px>

<ItemTemplate>

<asp:Button ID=freezeButton
Text=冻结 runat=server CommandName=freeze
CommandArgument='<%#
DataBinder.Eval(Container,RowIndex) %>'
BorderStyle=Groove OnClientClick=javascript:return
confirm('确定？');
/>

</ItemTemplate>

</asp:TemplateField>

</Columns>

</asp:GridView>

</ContentTemplate>

</asp:UpdatePanel>

</div>

</form>

Code-Behind代码：具体说明请看代码中的注释部分。

protected void dataBind()
    {

this.GridView1.DataSource = this.objUser.ReturnUserInfo();

this.GridView1.DataBind();

for (int i = 0; i < this.GridView1.Rows.Count;
i++)

{

if (this.GridView1.Rows[i].Cells[3].Text.Trim() == )

{

this.GridView1.Rows[i].Cells[3].Text = 否;

}

else

{

this.GridView1.Rows[i].Cells[3].Text = 是;

Button
b=(Button)this.GridView1.Rows[i].Cells[4].FindControl(freezeButton);

b.Text = 解冻;

b.BorderStyle = BorderStyle.Solid;

}

}
    }

protected void GridView1_OnPageIndexChanging(object sender,
GridViewPageEventArgs e)
    {

int index = e.NewPageIndex;

this.GridView1.PageIndex = index;

this.dataBind();
}

protected void GridView1_OnRowCommand(object
sender,GridViewCommandEventArgs e)
    {

int index =
Convert.ToInt32(e.CommandArgument);
//获取行号

GridViewRow row =
GridView1.Rows[index];       //所在的行

int userid =
Convert.ToInt32(row.Cells[0].Text.Trim()); //所在行的第一列，用户ID

//通过FindControl找到模板列中的按钮，其ID为“freezeButton”

Button b =
(Button)row.Cells[4].FindControl(freezeButton);

string freeze = ;

if (e.CommandName.ToString() == (freeze))

{

if (b.Text.Trim() == 冻结)

{

freeze = 1;

this.objUser.SetUserFrozen(userid,freeze);

b.Text = 解冻;

b.BorderStyle = BorderStyle.Solid;

}

else

{

freeze = ;

this.objUser.SetUserFrozen(userid, freeze);

b.Text = 冻结;

b.BorderStyle = BorderStyle.Groove;

}

}