User2103134756 posted
What is actually happening, it seems, that the linkbutton is rendered as command button. I thought somehow there was a border around it but that was the border of the command button. There are three methods used in this program. One is the gv's DataRowBound
event. The other 2 are in a utilities class that disable and enable all the linkbuttons during an edit so the user can't do an operation on a row. Here is the calling code, the utility methods and the event code. At the very bottom is the rendered source on
one of the gv rows. It doesn't matter what gets called or what page is executing, every gridview renders the same way in FF.
protected void SetFormState()
{
//Browse Mode
if (GlobalVars.CurrentMode == (int)Modes.Browse)
{
//Set button status
btnCreateNew.Enabled = true;
btnSave.Enabled = false;
btnCancel.Enabled = false;
//Reset form
FormUtilities.ResetForm(this.Form);
lblLastLoginDate.Text = string.Empty;
lblCreationDate.Text = string.Empty;
//Lock form controls
FormUtilities.LockFormInput(this.Form);
//Enable Gridview buttons
FormUtilities.EnableGridviewRows(grdUsers, SELECT_COL, DELETE_COL);
//Clear and disable user role dropdown
drpUserRole.Items.Clear();
drpUserRole.Enabled = false;
}
//Edit Mode
if (GlobalVars.CurrentMode == (int)Modes.Edit)
{
//Set button status
btnCreateNew.Enabled = false;
btnSave.Enabled = true;
btnCancel.Enabled = true;
//Unlock form
FormUtilities.UnlockFormInput(this.Form);
//Disable username textbox on edit
txtUserName.Enabled = false;
//Disable gridview buttons on edit or new
FormUtilities.DisableGridviewRows(grdUsers, SELECT_COL, DELETE_COL);
//Enable user role dropdown
drpUserRole.Enabled = true;
//Set focus to last name textbox
txtLastName.Focus();
}
.
.
.
Code continues
FormUtilities Methods
/// <summary>
/// Enables Gridview rows after form edit or
/// other operation that requires disabling of controls. It
/// also attaches a deleteConfirm script to the delete
/// button in the last column.
/// </summary>
/// <param name="gv"></param>
public static void EnableGridviewRows(GridView gv, int selectCol, int deleteCol)
{
//Init table cell
TableCell cell = new TableCell();
//Traverse through the rows
foreach(GridViewRow gvr in gv.Rows)
{
//If data row
if (gvr.RowType == DataControlRowType.DataRow)
//Change the cssClass back to normal widths for
//the Select and Delete buttons
gv.Columns[selectCol].ControlStyle.CssClass = "GvCmd";
gv.Columns[deleteCol].ControlStyle.CssClass = "GvCmd";
cell = gvr.Cells[selectCol];
//Gets the linkbutton control
LinkButton lbSelect = cell.Controls[1] as LinkButton;
lbSelect.Enabled = true;
//Get last cell
cell = gvr.Cells[deleteCol];
string recordName = string.Empty;
if (gv.ID == "grdUsers")
{
//Gets the name on the row to pass to script.
recordName = HttpUtility.JavaScriptStringEncode(string.Format("{0} {1}", gvr.Cells[3].Text.ToString(), gvr.Cells[2].Text.ToString()));
}
if (gv.ID == "grdVenues")
{
recordName = HttpUtility.JavaScriptStringEncode(string.Format("{0}", gvr.Cells[1].Text.ToString()));
}
if (gv.ID == "grdSchedule")
{
recordName = HttpUtility.JavaScriptStringEncode(string.Format(" the gig on {0} at {1} with {2} at {3}", gvr.Cells[1].Text.ToString(),
gvr.Cells[2].Text.ToString(), gvr.Cells[3].Text.ToString(), gvr.Cells[4].Text.ToString()));
}
//Gets the linkbutton control
LinkButton lbDelete = cell.Controls[1] as LinkButton;
//Attaches the script to the linkbutton
if (lbDelete != null)
{
//lbDelete.Enabled = true;
lbDelete.Attributes.Add("onClick", "return deleteConfirm('" + recordName + "')");
}
gvr.Enabled = true;
}
}
/// <summary>
/// Disables Gridview rows on form edit or
/// other operation that requires disabling of controls. It
/// also changes the command button styles to disabled and
/// removes a deleteConfirm script on the delete
/// button in the last column.
/// </summary>
/// <param name="gv"></param>
public static void DisableGridviewRows(GridView gv, int selectCol, int deleteCol)
{
TableCell cell = new TableCell();
foreach (GridViewRow gvr in gv.Rows)
{
if (gvr.RowType == DataControlRowType.DataRow)
{
if (gvr.RowIndex == gv.EditIndex)
{
gv.Columns[selectCol].ControlStyle.CssClass = "GvCmd";
}
else
{
gv.Columns[selectCol].ControlStyle.CssClass = "GvCmdDisabled";
gv.Columns[deleteCol].ControlStyle.CssClass = "GvCmdDisabled";
cell = gvr.Cells[selectCol];
LinkButton lbSelect = cell.Controls[1] as LinkButton;
string id = lbSelect.ID;
string txt = lbSelect.Text;
lbSelect.Enabled = false;
//Disable delete buttons
cell = gvr.Cells[deleteCol];
LinkButton lbDelete = cell.Controls[1] as LinkButton;
lbDelete.Attributes.Remove("onClick");
//lbDelete.Enabled = false;
gvr.Enabled = false;
}
}
}
}
DataRowBound Event
/// <summary>
/// Adds a confirm delete javascript attr to the delete
/// link button on the last column of the gridview
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void GrdUsers_RowDataBound(object sender, GridViewRowEventArgs e)
{
HiddenField hdnEditFlag = mp.Page.FindControlRecursive("hdnEditInProgress") as HiddenField;
if (hdnEditFlag.Value == true.ToString())
return;
//Inits new cell
TableCell cell = new TableCell();
//if data row
if (e.Row != null && e.Row.RowType == DataControlRowType.DataRow)
{
//Gets the name on the row to pass to script.
string recordName = string.Format("{0} {1}", e.Row.Cells[3].Text.ToString(), e.Row.Cells[2].Text.ToString());
//gets the delete button cell
cell = e.Row.Cells[7];
//get linkbutton control
LinkButton linkButton = (LinkButton)cell.Controls[1];
//Adds the javascript attribute that confirms a delete.
if (linkButton != null)
{
linkButton.Attributes.Add("onClick", "return deleteConfirm('" + recordName + "')");
}
}
}
Here is how it renders on the view source
<tr class="GrdVeiwAltRow">
<td class="GvCmdCol">
<a id="MainContent_grdUsers_grdUsersSelect_3" class="GvCmd" href="javascript:__doPostBack('ctl00$MainContent$grdUsers$ctl05$grdUsersSelect','')">Select</a>
</td><td>OrrS</td><td>Orr</td><td>Sean</td><td>SeanOrr@comcast.net</td><td>6/17/2019 11:05:06 PM</td><td>7/27/2019 1:13:09 AM</td><td class="GvCmdCol">
<a onclick="return deleteConfirm('Sean Orr');" id="MainContent_grdUsers_grdUsersDelete_3" class="GvCmd" href="javascript:__doPostBack('ctl00$MainContent$grdUsers$ctl05$grdUsersDelete','')">Delete</a>
</td>
</tr>
