Question

我有一个更新面板内的gridview。当我在编辑后单击“取消”时，没有任何反应。当我调试它确实进入我的gvWorkhours_RowCommand函数和取消if内部，但屏幕上没有任何反应（编辑字段仍然可见）

这就是我所拥有的：

<asp:GridView ID="gvWorkhours" runat="server" AutoGenerateColumns="false" CssClass="GridViewStyle" OnRowEditing="gvWorkhours_RowEditing"  
 OnRowCommand="gvWorkhours_RowCommand"  >
<EmptyDataTemplate>
no data returned
</EmptyDataTemplate>
<Columns>
<asp:commandfield buttontype="Link" showeditbutton="true" edittext="Edit" />
     <asp:TemplateField HeaderText="Organization">
        <ItemTemplate>
            <%# Eval("org.orgCode").ToString() + "- " + Eval("org.orgSubCode").ToString()%>
        </ItemTemplate>
    </asp:TemplateField>
 <asp:TemplateField HeaderText="Year-Qtr">
        <ItemTemplate>
            <%# Eval("year").ToString() + "- " + Eval("qtr").ToString()%>
        </ItemTemplate>
    </asp:TemplateField>
.......






 protected void gvWorkhours_RowEditing(Object sender, GridViewEditEventArgs e)
    {
        populateGrid();  //pulls from the Db and binds to the grid
        gvWorkhours.EditIndex = e.NewEditIndex;  //This is the selected row to edit
        gvWorkhours.DataBind();  //Make the edit Template show up

    }

    protected void gvWorkhours_RowCommand(Object sender, GridViewCommandEventArgs e)
    {
        // If multiple buttons are used in a GridView control, use the
        // CommandName property to determine which button was clicked.
        if (e.CommandName == "Cancel")
        {
            gvWorkhours.EditIndex = -1;
            populateGrid(); 
        }

    }





private void populateGrid()
    {
        //getting all variables for update here.
            Workhours wh = new Workhours(selectedItem, year, qtr);
            gvWorkhours.DataSource = wh.exposures;
            gvWorkhours.DataBind();
        }
        catch (Exception ex)
        {
            lblMessage.Text = ex.Message;
            //  throw(ex);
        }
    }

我在这里缺少什么？

Answer 1

您的示例中没有显示UpdatePanel，因此我不知道您是如何设置它的，但是如果您将UpdateMode设置为Conditional，则可能需要在更新面板上手动调用Update方法：

    if (e.CommandName == "Cancel")
    {
        gvWorkhours.EditIndex = -1;
        populateGrid(); 
        UpdatePanel1.Update();   // whatever the name of the UpdatePanel is
    }

Answer 2

尝试提供除取消之外的其他单词，例如＆＃34; CancelRecord＆＃34;然后试试吧

Answer 3

是的，这是一个老问题，但没有答案。

取消需要在RowCancelEdit方法中...似乎'取消'在这种情况下是受保护的单词

// numbers are 32bit signed integers!

while (true) {
    basic.pause(30)
    basic.clearScreen()
    plotAA(input.acceleration(Dimension.X) + 255 * 2, input.acceleration(Dimension.Y) + 255 * 2, 255, 255)
    //plotAAY(255 * 2, input.acceleration(Dimension.Y) + 255 * 2, 255, 255)
    //plotAAX(input.acceleration(Dimension.X) + 255 * 2, 255 * 2, 255, 255)
}

function plotAAX(_x: number, _y: number, _brightness: number, _scale: number) {
    let vertical = false;

    /* 
    * Draw a dot without "staircase effect"/aliasing.
    * _x           : from 0 to 4 but in _scale scale
    * _y           : from 0 to 4 but in _scale scale
    * _brightness  : led brightness
    * 
    * Half of _scale is a number of pixel center
    */

    let px = (_x + _scale) % _scale * 2 // subpixel x position

    let rx = (_x + _scale) / _scale - 1 // real x position (ceil)
    let ry = (_y + _scale) / _scale - 1 // real y position (ceil)

    led.plotBrightness(rx, ry, (_scale - px) * _brightness / _scale)
    led.plotBrightness(rx + 1, ry, px * _brightness / _scale)
}

function plotAAY(_x: number, _y: number, _brightness: number, _scale: number) {
    /* 
    * Draw a dot without "staircase effect"/aliasing.
    * _x           : from 0 to 4 but in _scale scale
    * _y           : from 0 to 4 but in _scale scale
    * _brightness  : led brightness
    * 
    * Half of _scale is a number of pixel center
    */

    let py = (_y + _scale) % _scale * 2 // subpixel y position

    let rx = (_x + _scale) / _scale - 1 // real x position (ceil)
    let ry = (_y + _scale) / _scale - 1 // real y position (ceil)

    led.plotBrightness(rx, ry, (_scale - py) * _brightness / _scale)
    led.plotBrightness(rx, ry + 1, py * _brightness / _scale)
}

function plotAA(_x: number, _y: number, _brightness: number, _scale: number) {

    /* 
    * Draw a dot without "staircase effect"/aliasing.
    * _x           : from 0 to 4 but in _scale scale
    * _y           : from 0 to 4 but in _scale scale
    * _brightness  : led brightness
    * 
    * Half of _scale is a number of pixel center
    */

    let px = (_x + _scale) % _scale // subpixel x position
    let py = (_y + _scale) % _scale // subpixel y position
    // -(half of scale) to (half of scale)

    let rx = (_x + _scale) / _scale - 1 // real x position (ceil)
    let ry = (_y + _scale) / _scale - 1 // real y position (ceil)

    led.plotBrightness(rx, ry, Math.max(_scale - distance(0, 0, px, py), 0) * _brightness / _scale)
    led.plotBrightness(rx, ry + 1, Math.max(_scale - distance(0, _scale, px, py), 0) * _brightness / _scale)
    led.plotBrightness(rx + 1, ry, Math.max(_scale - distance(_scale, 0, px, py), 0) * _brightness / _scale)
    led.plotBrightness(rx + 1, ry + 1, Math.max(_scale - distance(_scale, _scale, px, py), 0) * _brightness / _scale)
}

function distance(_1x: number, _1y: number, _2x: number, _2y: number) {
    _1x -= _2x
    _1y -= _2y
    return Math.sqrt(_1x * _1x + _1y * _1y)
}

取消行命令对GridView不起作用

3 个答案: