如何从外部更新按钮更新Gridview的行 [英] How Do I Update A Gridview's Row From An External Update Button

问题描述

你好，我是asp.net的新手，所以请光临我



到目前为止我有一个绑定到xml数据源的网格视图，当用户点击编辑它将打开一个新视图的任何行，此视图包含3个文本框。每个文本框都填充了所选行的数据。



我的问题是如何通过克服此视图中的更新按钮来更新gridview行的值



aspx文件中的视图：



< asp：查看ID =编辑runat =server>

< td>

< asp：TextBox ID =editnamerunat =server>

id	< asp：TextBox ID =editidrunat =server>
name
info	< asp：TextBox ID =editinfo runat =server>

< asp：Button Text =updateID =updaterunat =serverOnClick = update_Click/>









将其与gridview当用户点击编辑时。





代码隐藏文件：



protected void gv1_RowCommand（object sender，GridViewCommandEventArgs e）

{

if（e.CommandName ==eddit）

{

//用于编辑和更新的视图2



MultiView1.ActiveViewIndex = 2;

GridViewRow row =（ GridViewRow）（（Control）e.CommandSource）.Parent.Parent;

//将我的文本框链接到gridview中的标签

editid.Text =（row.FindControl （labelid）为标签）。文字;

editname.Text =（row.FindControl（labelname）as Label）.Text;

editinfo.Text =（row.FindControl（labelinfo）as Label）.Text;





}

}





如何将我在文本框中键入的值保存到gridview的选定行或将其保存到xml文件？



protected void update_Click（object sender，EventArgs e）

{

//我想在这里添加一些代码来更新文本框到选定行的值。这是可能的

}





我很抱歉这个愚蠢的问题但是我我很茫然。



非常感谢你的帮助，请和我一起开始我是这里的初学者

解决方案

为此，您必须在 RowCommand 中取一些内容，这是一些唯一的 ID 或者其他的东西。在 View 中，将其存储在 HiddenField 中。



内部更新按钮单击事件，获取 ID 值，并通过使用 ID

hello, i'm new to asp.net so please bare with me

so far i have a grid view bound to an xml data source, when the user clicks on edit on whatever row it will open up a new view, this view holds 3 text boxes. Each textbox is populated with the selected row's data.

my question is how can i update the value of the gridview's row by clinking on the "update" button located in this view

the view in the aspx file :

<asp:View ID="edit" runat="server" >

id	<asp:TextBox ID="editid" runat="server" >
name	<asp:TextBox ID="editname" runat="server" >
info	<asp:TextBox ID="editinfo" runat="server" >

<asp:Button Text="update" ID="update" runat="server" OnClick="update_Click" />




linked it with the gridview when the user clicks on edit.


code behind file :

protected void gv1_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "eddit")
{
//view 2 used for editing and updating

MultiView1.ActiveViewIndex = 2;
GridViewRow row = (GridViewRow)((Control)e.CommandSource).Parent.Parent;
//linked my textboxes to the labels in the gridview
editid.Text = (row.FindControl("labelid") as Label).Text;
editname.Text = (row.FindControl("labelname") as Label).Text;
editinfo.Text = (row.FindControl("labelinfo") as Label).Text;


}
}


how do i save the values i typed in the text boxes to the gridview's selected row or save it to the xml file?

protected void update_Click(object sender, EventArgs e)
{
// i want to add some code here to update the values from the textbox to the selected row. is this possible
}


i'm sorry for the stupid question but i am at a loss.

thank you very much for your help, and please bare with me i am a beginner in this

解决方案

For this, you have to take something inside RowCommand, which is unique like some ID or something. Inside the View, store it in a HiddenField.

Inside Update Button Click Event, get the ID value and update that particular row in XML by searching with the ID.

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